Best of 2008

Teen Takeover! The Year's Hottest (and Youngest) Stars

Miley! Taylor! Selena! See the crop of under-20 celebs who rocked 2008. By Serena Kappes

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MIRANDA COSGROVE

Age: 15
She successfully followed up her role in the Drake & Josh movies with iCarly, the breakout Nickelodeon show where she plays accidental Web star Carly Shay. Now the actress is ready to show off her musical chops: After singing on the successful iCarly soundtrack album, which debuted at No. 28 on Billboard's 200 Albums chart, Cosgrove began work on her solo disc, due next year.
Country's Breakout Year (Hello, Taylor!) | Taylor Swift

Country's Breakout Year (Hello, Taylor!)

From Taylor to Keith Urban, see how Nashville's A-listers took over the world – and MTV!

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