Sizzlin' Pics: The Hottest 25 Stars Who Are 25 & Under!
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Michael Cera (22)
What's He Done: Indie film star Michael Cera won the hearts of fans and critics alike for his role as George-Michael Bluth in "Arrested Development." He has starred in 'Paper Heart' and comedies 'Youth in Revolt,' 'Scott Pilgrim vs. the World' and 'Superbad.'
What's Next: Cera is appearing on "Children's Hospital."
