Zac & Vanessa are Number One!

High School Musical stars, Vanessa Hudgens, Zac Efron and Corbin Bleu arrive a bit tired at the Radio 1 studios in London, England amidst fans seeking autographs and pictures on Wednesday.

Vanessa, 19, and Ashley Tisdale, 23, both did an interview with the BBC and V was asked if she was going out with Zac! See what she says! Peep the video here!

10+ pictures inside of Zac Efron and Vanessa Hudgens being number one…