John Stamos Shares Sexy Underwear Pic on 52nd Birthday, Gets Surprise on 'Grandfathered' Set!
John Stamos is Sexy, Smiling on Set of His New Show
Ed Sheeran Channels His ‘Deepest, Darkest Thoughts’ on New Album…
Keanu Reeves Reflects on the Death of ‘Beautiful’ and ‘Special’ …
90s Con: Candace Cameron Bure and Dave Coulier Say 'Full House' …
Chrissy Teigen Dyes Hair Red Weeks After Welcoming Third Child W…
Morgan Wallen on Visiting His Hometown and His New Album 'One Th…
Kiefer Sutherland Spills on New Show ‘Rabbit Hole’ and If He’d R…
Why Helen Mirren Hid Her Finger Injury on 'Shazam: Fury of the G…
Go Behind the Scenes of Adam Lambert's Rehearsals for His New Al…
'Magic Mike's Last Dance': Channing Tatum Reflects on His New Da…
Tamar Braxton on What Inspired Her New Music and Pursuit of Love…
'RHONJ': Rachel Fuda Calls Out Co-Stars' 'Mean Girl' Moves Amid …
'American Idol' Judges Tear Up Over Contestant Who Nearly Died i…
Cheryl Burke 'Dating Myself at the Moment,' But 'Would Totally G…
Keanu Reeves Reenacts His Most Iconic Movie Lines (Exclusive)
'John Wick: Chapter 4' Premiere: Keanu Reeves and Laurence Fishb…
Keanu Reeves Promises ‘John Wick: Chapter 4’ Is ‘So Ambitious’ (…
Oscars 2023: John Travolta Gets Choked Up Paying Tribute to Oliv…
Halle Berry Attempts to Squeeze Into Her Pants
John Stamos turned 52 on Wednesday and he rang in the day with an Instagram photo that proves he only gets better with age.
"At 52, proof I put on my undies like everyone else ... one leg at a time," he wrote as the caption to a photo showing the shirtless actor slipping into a pair of slacks.
WATCH: John Stamos Is Out of Rehab and Looking Incredible
ET helped celebrate Stamos' birthday by surprising him with baklava on the set of his new Fox sitcom, Grandfathered. Guest star Richie Sambora pitched in during the surprise celebration, singing "Livin' on a Prayer."
On the upcoming comedy, Stamos plays a playboy restauranteur who meets a twentysomething son he never knew he had. Making matters more complicated, his son has a daughter, making Stamos' character an instant grandfather.
The show uses twin toddlers to share the role of Stamos' granddaughter on the show, not unlike how the Olsen twins Mary-Kate and Ashley played Michelle Tanner on Full House.
WATCH: John Stamos Celebrates Birthday With 'Fuller House' Pool Party
"When these girls start getting fussy, I say, 'I made some other twins very wealthy. Be good and you can have your own clothing line,'" Stamos told ET.
Watch the video for more. Grandfathered debuts Sept. 29 on Fox.