Which Music Stars Made Billboard's 21 Under 21?

Miley Cyrus, Nick Jonas, One Direction, Willow Smith, Demi Lovato, Scotty McCreery - What do all these names have in common? They've sold tons of records, made their ways onto the walls of many teens across the world and and they're all under the age of 21. Because of this, they've all been named to Billboard.com's 21 Under 21: Music's Hottest Minors List.

Billboard released their annual list of the biggest music stars under the age of 21 this week and it includes some familiar faces as well as some rising stars. Below is their list. Let us know if you agree or disagree!

21. Miley Cyrus
20. Miguelito
19. One Direction
18. Porter Robinson
17. HyunA
16. Mindless Behavior
15. Greyson Chance
14. Willow Smith
13. Cody Simpson
12. Il Volo
11. Lex Luger
10. Victoria Justice
9. Rye Rye
8. Nick Jonas
7. Demi Lovato
6. Mac Miller
5. Jackie Evancho
4. Scotty McCreery
3. Selena Gomez
2. Tyler, the Creator
1. Justin Bieber