Lorde has been named Billboard's most influential popstar under the age of 21.

The 17-year-old singer tops the list ahead of 5 Seconds of Summer, Justin Bieber, Martin Garrix and Fifth Harmony.



Lorde has enjoyed international success with her debut album Pure Heroine since it was released in late 2013. She debuted at number six on last year's influential list.

One Direction were named the most influential young popstars of 2013, but now that multiple members of the group are aged 21 or over, they are no longer eligible.

5 Seconds of Summer finished in second place this year, with Justin Bieber in third, and 18-year-old DJ Martin Garrix in fourth.



Fifth Harmony - who finished in third on the 2012 series of The X Factor USA - round out this year's Top 5.

Austin Mahone (6), Becky G (9) and The Vamps (20) also feature on this year's list.

Take a look at Billboard's full 21 Under 21 list below:

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

Watch the music video for Lorde's 'Team' below:

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