zac efron ashley tisdale that awkward moment high school musical Zac Efron and Ashley Tisdale's 'High School Musical' reunion at the 'That Awkward Moment' premiereThey’re all in this together: Zac Efron‘s “High School Musical” costar Ashley Tisdale came out to support her friend at the Los Angeles premiere of Efron’s new movie, “That Awkward Moment.”

The two actors have grown up quite a bit in the eight years since “HSM” originally premiered on the Disney Channel — Efron’s “That Awkward Moment” is a sex-themed relationship comedy, after all.

Tisdale, 28, was the first person to show up to the screening, but made light of the situation by tweeting a picture of the empty theater. “#Thatawkwardmoment when you’re the first person at the premiere….,” she jokes.

“That Awkward Moment” opens Friday, Jan. 31. Check out a gratuitous amount of photos of Tisdale and Efron looking hot at the premiere below.

ashley tisdale zac efron that awkward moment premiere Zac Efron and Ashley Tisdale's 'High School Musical' reunion at the 'That Awkward Moment' premiereashley tisdale that awkward moment premiere Zac Efron and Ashley Tisdale's 'High School Musical' reunion at the 'That Awkward Moment' premierezac efron that awkward moment premiere gi Zac Efron and Ashley Tisdale's 'High School Musical' reunion at the 'That Awkward Moment' premierezac efron that awkward moment premiere Zac Efron and Ashley Tisdale's 'High School Musical' reunion at the 'That Awkward Moment' premiere