Ashley Tisdale Celebrates Zac Efron's 29th Birthday With Adorable 'High School Musical' Throwback Pic

Ashley Tisdale Wishes Zac Efron a Happy Birthday by Posting a Sw…

Inside Chanel's Star-Studded L.A. Fashion Show

How Orlando Bloom’s Driving Skills Were Put to the Test in ‘Gran…

'My Big Fat Greek Wedding 3' Official Trailer

Beyoncé Sports Bee Couture for Renaissance Tour Opening Night in…

Chrishell Stause and G Flip Get Secretly Married After 1 Year of…

ACM Awards: Kimberly Perry on Journey as Solo Artist and Revisit…

'Fast X': Vin Diesel Calls Meadow Walker Joining Franchise 'Dest…

Watch Gwen Stefani's Sweet Tribute to Husband Blake Shelton Duri…

Blake Shelton Admits His Stepson Forgets He's Famous as He Recei…

Jamie Foxx's Daughter Shuts Down Concerns He's Near Death Follow…

Sylvester Stallone's Daughters on How Their Dad Makes it ‘Intimi…

Why Hailey Bieber Feels Scared to Have Kids With Husband Justin

Zendaya and Tom Holland All Smiles During Date Night at Lakers v…

Shawn Mendes and Camila Cabello Cozy Up After Coachella Kiss

'Queens Court': Holly Robinson Peete and Rodney on Supporting Ta…

King Charles' Coronation: Everything to Expect, From Harry to Ca…

'Yellowstone' Officially Ending With Season 5: What’s Next for F…

Pretty Yende Reflects on ‘Wonderful’ Experience at King Charles’…
It's been 10 years since High School Musical debuted on the Disney Channel, but it looks like the cast is still super close.
Zac Efron turned 29 years old on Tuesday, and his co-star, Ashley Tisdale, celebrated by sharing a super cute photo of the two together.
"Happy birthday buddy! @ZacEfron you will always be the Troy to my Sharpay," Tisdale sweetly wrote alongside a pic of Efron giving her a piggyback ride, referencing their High School Musical characters. "[Heart emoji] you brother!"
WATCH: Zac Efron and Vanessa Hudgens' Original 'High School Musical' Auditions Are Beyond Adorable
Monique Coleman (Taylor) also Instagrammed a cute throwback of Efron and herself on his special day, writing, "Happy Birthday @zacefron. I'm always proud of you, always rooting for you & eternally grateful for all the memories. I hope your last 20 is your best yet! Xx."
Although Efron's HSM boys have yet to publicly wish him a happy birthday, the Neighbors 2 star made it clear earlier this month that he, Corbin Bleu (Chad) and Lucas Grabeel (Ryan) are still in touch, when the three reunited at Bleu's Broadway debut in Holiday Inn.
"#Theboysareback," Efron tweeted alongside a black-and-white selfie of the trio.
In May, Efron delighted fans with a throwback pic with Tisdale, Bleu, and his ex-girlfriend, Vanessa Hudgens.
"So grateful I came across this picture … With the o.g. crew during one of the most cherished and exciting times of my life. Love you guys forever," he captioned the snap.
PICS: EXCLUSIVE: 'High School Musical' Turns 10! Cast Reflects on Surprise Disney Smash
ET spoke with Tisdale in January about the cast's close friendships.
"I just love that we all still love each other and love hanging out with each other and have that connection, you know?" Tisdale told ET exclusively. "It was a really special moment in our lives."
Watch below: