Billboard's 21 UNDER 21 Music's Hottest

Billboard lists '21 Under 21, selected not only for their tender age but also for their potential to rule the pop culture zeitgeist over the next 12 months.' 1. Taylor Swift 2. Justin Bieber 3. Selena Gomez 4. Charice 5. Soulja Boy 6. Nick Jonas 7. Willow Smith 8. Demi Lovato 9. Greyson Chance 10. Miley Cyrus 11. Lex Lugar12. Taylor Momson 13. Chris Colfer 14. Miranda Cosgrove 15. Diggy Simmons