Must-See Star Sightings: December 2017

The singer braved the cold to perform at Dick Clark's New Year's Rockin' Eve with Ryan Seacrest on Dec. 31 in New York City's Times Square.

The "Jealous" singer excited fans when he performed some of his hits during Dick Clark's New Year's Rockin' Eve with Ryan Seacrest in New York City on Dec. 31.

The duo rang in the new year from Los Angeles on Dick Clark's New Year's Rockin' Eve with Ryan Seacrest.

The father-daughter duo attended the LAVO Singapore Grand Opening at Marina Bay Sands on Dec. 31.

The blond beauty had a laugh while out with friends in Studio City, California, on Dec. 30.

The 19-year-old actress cruised down the boardwalk in Venice, California, on Dec. 30.

The Vampire Diaries alum gave off major Rainbow Brite vibes during her ski vacation in Aspen, Colorado, on Dec. 30.

J. Lo gave a wave to photogs while ARod did some snapping of his own as the pair went shopping at Tom Ford in Beverly Hills on Dec. 27. Lopez looked comfy cool in a long white cardigan from the designer, which she paired with distressed jeans and Timberland boots.

Who wouldn't want to be as fresh-faced as this when stepping off a plane? The This Is Us star happily rolled her luggage through JFK Airport after landing in New York City with her fiance, Taylor Goldsmith, on Dec. 27.

The This Is Us star, his wife, Ryan Michelle Bathe, and their two sons, 6-year-old Andrew and 2-year-old Amaré, looked positively giddy to be hanging with Stitch at Disney Resort & Spa in Ko Olina, Hawaii, on Dec. 27.

The Younger star got some me time in, visiting You Doll You in Beverly Hills on Dec. 27.

The Clintons met Tony Shaloub and Katrina Lenk backstage at the musical, The Band's Visit, in New York City on Dec. 27. See even more celebs visit Broadway here. 

The pregnant actress flashed a smile after grabbing lunch during a shopping day with her husband, Jose Baston, in Miami Beach, Florida, on Dec. 26.

The mother-daughter duo sweetly held hands while walking in Aspen, Colorado, on Dec. 26.

The Modern Family star rocked a strapless LBD and matching sky-high stilettos to a studio in Studio City, California, on Dec. 26.

The pop diva couldn't stop smiling while out in Aspen, Colorado, on Christmas Eve. Carey rocked a tri-colored puffer, jeans, '70-style gold-framed sunglasses and a tiger belt for her shopping excursion. 

The "Sorry Not Sorry" singer rocked a very punky all-black ensemble with a matching Celine bag while shopping at Barneys New York in Beverly Hills on Christmas Eve. 

The "Beautiful" singer held on tight to her phone and a cup of coffee while shopping with a friend in Beverly Hills on Dec. 23.

The mother-daughter duo happily braved the cold while vacationing in Aspen, Colorado, on Dec. 22.

The Flip or Flop star gave back at the Los Angeles Mission's Christmas Celebration on Skid Row on Dec. 22.

The British singer looked like a total (bundled up!) downtown girl while walking in New York City on Dec. 21.

The Bachelorette star and her beau splashed around in the Atlantic Ocean during their PDA-heavy Miami Beach vacation on Dec. 21. Lindsay even rocked a white swimsuit with "fiance" written on the front in gold.

Her furry coat collection is on point! Hadid rocked yet another fuzzy coat, this time a long white topper over a black-and-white ensemble while out in New York City with her sister, Bella Hadid, on Dec. 20.

Nice 'stache, Zac! The actor showed off his new facial accessory at The Greatest Showman premiere in Sydney, Australia, on Dec. 20.

The Marshall star was a total boho babe as she made her way to a theater workshop in Venice, California, on Dec. 19.

The lovebirds shared a kiss at G-Eazy's The Beautiful & Damned album release party in New York City on Dec. 19.

She wears her heart near her sleeve! The Vampire Diaries alum gave a wave while shopping in Beverly Hills in a comfy-chic look on Dec. 19.

The bundled-up lovebirds strolled hand-in-hand through New York City's Soho neighborhood on Dec. 19.

Orange you glad Thorne rocked these bold plaid pants while out and about in Los Angeles on Dec. 18?

The pregnant actress and Newsroom alum rocked matching black-and-white ensembles and sipped on ice-cold drinks after getting lunch together in Beverly Hills on Dec. 18.

The co-stars glammed it up for the premiere of their new movie, Downsizing, in Westwood, California, on Dec. 18.

She's blind for love! Hudgens looked like a Parisian starlet in her chic vintage ensemble as she ran errands in Los Angeles on Dec. 18.

The actors ran into each other on the street in New York City's West Village on Dec. 18, enjoying a catch-up chat outside despite the cold temps.

The adorable couple was quite cheery as they pushed their full cart towards their car after a trip to a Gelson's supermarket in Los Angeles on Dec. 17.

The "Sorry Not Sorry" singer heated up the stage in a pair of denim chaps during her Y100 iHeartRadio Jingle Ball performance at the BB&T Center in Sunrise, Florida, on Dec. 17.

The mom of three looked business chic in a black-and-white ensemble while out in Los Angeles on Dec. 17.

New best buds! Kunis looked beyond excited to hang out with Mickey Mouse at Disney On Ice: Follow Your Heart at the Staples Center in Los Angeles on Dec. 16. Plus, check out her kickass Wonder Woman shirt!

The Blindspot star rocked a "This Is What Feminism Looks Like" tee with very '80s acid-wash denim and furry black kicks as she made her way through LAX airport on Dec. 16.

Hello, hotness! The Big Bang Theory star knew exactly where to go during her Sin City girls weekend -- Magic Mike Live Las Vegas! Cuoco and her pals met with the hunky shirtless cast backstage after catching a performance of the show on Dec. 16.

Picture Perfect! Lena Waithe, Lil Rel Howery, Samira Wiley, Yvette Nicole Brown, Niecy Nash, Loretta Devine, Janine Sherman Barrois, and singer-songwriter MAJOR, posed for a photo during the 49th Annual NAACP Image Awards Nominees' Luncheon at The Beverly Hilton Hotel in Los Angeles, California on Dec. 16. The star-studded event was hosted by Howery and Underground actress Amirah Vann.

The Claws star made a statement in a bold blue dress at the 49th NAACP Image Awards Nominees' Luncheon at The Beverly Hilton Hotel in Los Angeles, California, on Dec. 16. 

Here's looking at you, kid! Payne walked the red carpet ahead of his Dec. 15 performance at Power 96.1's Jingle Ball 2017 in Atlanta, Georgia.

The mom of six was clad in velvet as she made her way into an office building in New York City on Dec. 14.

The acclaimed director posed with Ayman Hariri, Nick Groarke and photographer Robert Whitman at the book launch of Prince Pre Fame, available exclusively on Vero, in New York City on Dec. 14.

The co-stars were extra cheery at the after-party for the world premiere of their new movie, Father Figures, in Los Angeles on Dec. 13.

The pair posed for a pic at a special screening of Marshall in Beverly Hills on Dec. 13.

McCarthy and her hubby were all about meeting BB-8 at the SiriusXM Studios in New York City on Dec. 13 -- just check out her shirt!

No bull about it -- Cena knows how to warm our hearts! The star of the upcoming animated film, Ferdinand, headed to Santa Clarita, California, with Twentieth Century Fox and Zevia to help rescue a young bull calf who was, of course, named Ferdinand! The film hits theaters Dec. 15.

The fun father-son duo snapped selfies together at the premiere of Netflix's Bright at Regency Village Theatre in Westwood, California, on Dec. 13.

The second-time mom-to-be flashed a shy smile as she and her mom made their way back to their New York City hotel on Dec. 13.

The 25-year-old actress had some company as she struck a pose on the red carpet at the European premiere of Star Wars: The Last Jedi in London, England, on Dec. 12.

The happy couple cuddled up to one another at Netflix's Wormwood premiere in New York City on Dec. 12.

The Bush frontman threw up peace signs while at the neXt2rock 2017 Finale Event at West Hollywood's Viper Room on Dec. 12.

'Ello! The Duchess of Cambridge gave a wave as she exited the "Magic Mums" Community Christmas Party, held on Nov. 12 at the Rugby Portobello Trust in London, England.

The CBS This Morning anchor and Dawson's Creek alum posed together at the Hearst 100 at Michael's Restaurant in the Big Apple on Dec. 11.

Nick Jonas, Jack Black, Dwayne Johnson, and Kevin Hart struck a stylish pose at the premiere of Jumanji: Welcome to the Jungle' on Dec. 11 in Hollywood, California.

The "All of Me" singer was feeling the music as he headlined the 24th Annual Nobel Peace Prize Concert in Oslo, Norway, on Dec. 11, where he performed on one of six Hibaku pianos, a famed set of instruments that survived the atomic bombings in Japan. The event was hosted by David Oyelowo and honored the Nobel Peace Prize laureate, ICAN (the International Campaign to Abolish Nuclear Weapons)

The Sinner star was super smiley after grabbing breakfast with some of her girlfriends at The Farm in Beverly Hills on Dec. 11.

The mom of two visited her former sister-in-law's radio broadcast, The Jill Kargman Show, at SiriusXM Studios in New York City on Dec. 11.

Edgar Ramirez, Ricky Martin and Darren Criss were a trio of dapper dudes at a screening of The Assassination Of Gianni Versace: American Crime Story at Metrograph on Dec. 11 in New York City.

Flying like an eagle! The "Bedroom Floor" singer made a major statement in a bold tee, royal blue pants and futuristic white kicks during Capital FM's Jingle Bell Ball with Coca-Cola at The O2 Arena in London, England, on Dec. 10.

The Jane the Virgin star and "Chains" singer made for one perfect pair at the Ferdinand after-party in Los Angeles on Dec. 10.

Holmes braved the snow to shop at the Old Navy x PopSugar "Deck the Hauls" Gifting Pop-Up in New York City on Dec. 9.

It was a party on the red carpet for these co-stars at the world premiere of Star Wars: The Last Jedi in Los Angeles on Dec. 9.

The iconic actress attended the GCAPP "Eight Decades of Jane" event in celebration of her 80th birthday at the Whitley on Dec. 9 in Atlanta, Georgia.

Miley Cyrus would be so jealous! Richie rode a very sweet version of a wrecking ball at the Museum of Ice Cream Miami's star-studded Sunset Soirée, held during Art Basel on Dec. 8.

The hotel heiress-turned-DJ had her beau by her side as she closed out Art Basel with her annual Art Week party at WALL Miami in Florida on Dec. 9. A source tells ET she arrived at 2:30 a.m. and gave the crowd an exclusive listen to her new single, "Summer Reign."

The "Sorry Not Sorry" singer was flanked by her dancer girl squad while performing at Z100's 2017 Jingle Ball in New York City on Dec. 8.

We'd say they're both pretty great showmen! The co-stars posed for pics on the red carpet at the world premiere of their new movie, The Greatest Showman, in Brooklyn, New York, on Dec. 8.

The Keeping Up With the Kardashians star covered up her baby bump with an oversized camo jacket as she made her way through LAX airport on Dec. 8.

The couple didn't shy away from PDA during the Art Week Party at Sugar Factory Ocean Drive in Miami, Florida, on Dec. 8. 

Drake made an impromptu appearance during Lil Wayne's Art Basel set at  E11EVEN MIAMI on Dec. 8. The club was hosting The h.wood Group’s Bootsy Bellows pop-up takeover with Young Money and OVO, presented by Absolut Elyx & Perrier Jouet.

Dressed in a pretty pink velvet dress, the pregnant model smiled back at her husband as they exited the GQ Men of the Year party in Los Angeles on Dec. 7.

The British actors posed on the red carpet before heading inside the 2017 GQ Men of the Year party at Los Angeles' Chateau Marmont on Dec. 7.

Fans were ready for Swift when she hit the stage at the B96 Pepsi Jingle Bash at the Allstate Arena in Rosemont, Illinois, on Dec. 7.

The 27-year-old actress happily spoke onstage during a Q&A at a screening of her new movie, I, Tonya, hosted by Australians in Film at the Writers Guild Theater in Beverly Hills on Dec. 7.

The Shameless actor and This Is Us star were matching in maroon at the 2017 GQ Men of the Year party on Dec. 7.

The Pitch Perfect 3 star wore a festive look tied with a bow for her visit to BUILD LDN at the AOL Studios in London, England, on Dec. 7.

The funny man jumped for joy at the U.K. premiere of Jumanji: Welcome To The Jungle in London, England, on Dec. 7.

The trio came together for Woolrich’s Toronto flagship opening at the Yorkdale Shopping Centre on Dec. 7.

The "Bodak Yellow" rapper performed at Jeremy Scott’s annual Miami party, TIDAL X: Moschino, on Dec. 7, where she was joined on stage by G-Eazy. Other celebs in attendance included Diplo, Joan Smalls, Paris Hilton and Justine Skye.

All the neon lights! The "Sorry Not Sorry" singer posed in Refinery29's 29Rooms Los Angeles exhibit during the opening night party at ROW DTLA on Dec. 6. Lovato was one of the collaborators of the very Instagrammable spaces. 

The stunning faces of Chanel posted up at the fashion house's Métiers d’Art runway show in Hamburg, Germany, on Dec. 6.

The loved-up duo bundled up for an arm-in-arm stroll through Paris, France, on Dec. 6.

The Baywatch babe couldn't stop smiling as he signed autographs for fans in London, England, on Dec. 6.

The lovely ladies hugged it out at the L'Oreal Paris Women of Worth Celebration 2017 in New York City on Dec. 6.

Right back at you! Blanchett gave photogs an over-the-shoulder glance during the opening night gala of the 14th Annual Dubai International Film Festival in the United Arab Emirates on Dec. 6.

The mom of six had a laugh onstage during The Hollywood Reporter's 2017 Women In Entertainment Breakfast at Milk Studios in Los Angeles on Dec. 6.

Timberlake cracked up while speaking onstage with the Wonder Woman star during The Hollywood Reporter's 2017 Women In Entertainment Breakfast.

The lovely ladies struck sultry poses while attending Prada Double Club Miami: A Carsten Holler Project at Ice Palace Films Studios in Florida on Dec. 5.

The Greatest Showman star gave off major James Bond vibes as he made his way to Global Radio Studios in London, England, on Dec. 5.

The 40-year-old actress looked lovely in a sleeveless gray plaid dress at a photocall for her new movie, Molly's Game, in Berlin, Germany, on Dec. 5.

The 36-year-old socialite poses behind the DJ booth as Ocean Drive Magazine and MSC Cruises' December cover star at Mana Contemporary in Miami, Florida, on Dec. 5.

The Suburbicon star flashed a big grin as he made his way through LAX airport on Dec. 5.

The look-alike mother-daughter duo dressed to impress while attending the Molly R. Stern X Sarah Chloe Jewelry Collaboration Launch Dinner in West Hollywood, California, on Dec. 4.

The "No Frauds" rapper kept warm and cozy at the Prive Reveaux eyewear flagship launch in New York City's Times Square on Dec. 4, topping her all-black ensemble with a pale pink fur coat.

The newly engaged prince looked quite dapper as he arrived at the London Fire Brigade carol service at Westminster Cathedral in England on Dec. 4.

Cowabunga, dude! Bieber looked psyched to go hiking in Los Angeles' Runyon Canyon on Dec. 4.

The Jurassic World: Fallen Kingdom star flashed a peace sign to fans as he made his way into Jimmy Kimmel Live!'s Los Angeles set on Dec. 4. Pratt was the special guest host for the night, as Kimmel was out for the week as his infant son recovered from surgery.

The powerhouses caught up on the red carpet at the 2017 Fashion Awards, held in partnership with Swarovski, at Royal Albert Hall in London, England, on Dec. 4.

The real-life couple excitedly performed onstage together during 101.3 KDWB's iHeartMedia Jingle Ball 2017 in St. Paul, Minnesota, on Dec. 4. The duo recently released a single together called "Him & I."

The "Wolves" singer paired her floral dress with red heels and red lipstick when she stopped by the Kiss FM Studios on Dec. 4 in London, England.

Clad in all-black attire, The Greatest Showman star flashed a smile after landing at Heathrow Airport in London, England, on Dec. 3.

Fergie and Fisher flanked the fashion designer-turned-filmmaker at The Trevor Project's 2017 TrevorLIVE LA Gala at The Beverly Hilton Hotel in Beverly Hills on Dec. 3. During the gala, Ford was presented with the Hero Award by Armie Hammer. “We all know that we are currently enduring a political environment that thrives on hate, and division, and so we must work harder to ensure that we celebrate and fight for inclusion, understanding and, most importantly, love," the honoree said during his acceptance speech.

Rodriguez, an honoree at ACLU SoCal's Annual Bill of Rights Dinner, gleefully embraced the YouTube star at the star-studded event at the Beverly Wilshire Four Seasons Hotel in Beverly Hills on Dec. 3.

The 49-year-old rapper let his ring do the talking at the 40th Kennedy Center Honors in Washington, D.C., on Dec. 3.

The A Wrinkle in Time co-stars came together for Teen Vogue Summit LA's Keynote Conversation that also included their film's director, Ava DuVernay, in Playa Vista, California, on Dec. 2.

We'll take two tickets to this gun show! Jonas showed off his crazy toned arms after his gym workout in Los Angeles on Dec. 1.

The duo struck gold backstage at 102.7 KIIS FM's iHeartRadio Jingle Ball 2017, presented by Capital One, at The Forum in Inglewood, California, on Dec. 1.

The new queen of Christmas showed off a pretty winter white dress with black embroidery while visiting Magic Radio in London, England, on Dec. 1.

Clad in military-inspired gear, the "What About Us" singer flashed a smile while promoting her new album, Beautiful Trauma, at BBC Radio Studios in London, England, on Dec. 1.