Sizzlin' Pics: The Hottest 25 Stars Who Are 25 & Under!
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Penn Badgley (24)
What's He Done: Penn Badgley appeared on several TV shows including "The Young and the Restless," "What I Like About You" and "The Mountain," before landing his big gig on "Gossip Girl." His cute countenance has also lit up films such as 'Easy A,' 'The Stepfather' and 'John Tucker Must Die.'
What's Next: This fall, the brunette will appear in the ensemble thriller 'Margin Call,' alongside Kevin Spacey, Paul Bettany, Jeremy Irons, Zachary Quinto and Simon Baker.
