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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DAVID ARCHULETA

Age: 17
Though he was the runner-up to American Idol season 7 winner David Cook, the quiet teen with the big voice has a rabid fan base – dubbing themselves "Archies." "It's pretty cool," says the singer, who recently released his self-titled debut album and first single, "Crush"". "People put the time and effort into making signs for you with your name and pictures on it! I do appreciate it."