The Top 21 under 21 Music Stars of 2014 | @Billboards @Juelsofrome

What’s it like to become a music star with millions of fans before being able to legally order a beer to celebrate those achievements? These 21 artists know the feeling. Welcome to Billboard.com’s 2014 edition of 21 Under 21, our annual ranking of music’s most powerful minors, and perhaps the most impressive crop of under-21 stars we’ve ever assembled.

There are international stars, social-media powerhouses, on-the-rise groups and singers that have scored No. 1 smashes on the Hot 100 before their 21st birthday. There’s pop, rock, EDM, hip-hop, country, K-pop, and more genres represented here. Most importantly, there’s a ton of potential on this list -- these 21 artists have already accomplished a great deal, but are safe bets to continue finding success as they edge toward adulthood. For now they’re just kids, but they’re the kids that everyone in music is watching.

More: 21 Under 21's Next Class | Top 21 Songs by Under-21 Musicians

Billboard's 2014 21 Under 21 List

1. Lorde	2. 5 Seconds of Summer	3. Justin Bieber
4. Martin Garrix	5. Fifth Harmony	6. Austin Mahone
7. Earl Sweatshirt	8. Shawn Mendes	9. Becky G.
10. Chief Keef	11. Luis Coronel	12. Meghan Trainor
13. Cody Simpson	14. Madeon	15. Bobby Shmurda
16. Scotty McCreery	17. Troye Sivan	18. Rae Sremmurd
19. Akdong Musician	20. The Vamps	21. Unlocking the Truth