VIDEO : Vanessa Hudgens And Ashley Tisdale Sing A Duet

Back in their High School Musical days, Vanessa Hudgens and Ashley Tisdale played frenemies. But off screen, they're actually good friends?and you can see it in the way they smile at each other during their new first duet together.
Tisdale surprised her YouTube followers by inviting her most-requested special guest (Hudgens) to sing with her in a recurring segment called Music Sessions. "We're really excited to do this," Tisdale explained as Hudgens laughed to her right.