Hollywood heartthrob Zac Efron has revealed his secret to going out undercover - the actor grows out his moustache.
The 22-year-old rarely goes out unnoticed, and admits it's hard to dodge his High School Musical superfans.
He tested out the simple disguise and went incognito at the Coachella Music & Arts Festival in Indio, California in April (10), and Efron is shocked at how easy it was to fool fellow revellers and lurking paparazzi.
He tells America's In Style magazine, "I wanted to go to the Coachella music festival, be in the crowd, and see the bands without any VIP bull. So I grew a kind of prepubescent moustache, and nobody recognised me. It was so liberating, and all it took was that!"