Entertainment21 & Under: Hottest Breakout Stars

Zac! Rihanna! Shia! Lauren! These kids aren't only the most popular, they're also the most likely to get bigger in '08. By Aaron Parsley

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THE INGÉNUE

As High School Musical 2's popular girl – not to mention Zac Efron's girlfriend! – Vanessa Anne Hudgens, 18, was the envy of every teenage girl in America. Then an Internet scandal threatened to derail her status as a Disney darling – until her heartfelt apology tempered her youthful mistake, proving she's still got the good girl charm that made her a star.

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Credit: Jon Kopaloff/FilmMagic

Updated: Monday Nov 26, 2007 | 06:00 AM EST

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