Celebrities who have fixed their teeth -- and those who haven't

2 of 10: Zac Efron used to have a gap between his teeth before he had it fixed.

'I was always the shortest kid in school. A really short, really skinny kid. Finally, I got bigger in my junior year. Plus, I had a huge gap in my teeth. I got teased more about my gap than anything else,' the actor told People magazine in 2007.

His then-girlfriend and 'High School Musical' co-star Vanessa Hudgens, told Glamour magazine in 2010: 'Right off the bat, we had a connection. I think everybody could see it. When we had our audition, they paired us together. And he was adorable. I mean, he wasn't the guy that he is today. Like, he had a gap in his teeth.'

(Pictured: Zac Efron talks about 'New Year's Eve' in December 2011. / Zac Efron appears in a scene from the 2006 Disney Channel film 'High School Musical.') (New Line Cinema)