9. Becky G: 21 Under 21 (2014)
Birthdate: March 2, 1997 (Age: 17)
Last Year's Rank: N/A
Why She's Hot: Becky G (real name Rebbeca Marie Gomez) is on a serious roll. The L.A.-born singer, rapper, actress and CoverGirl model has continued to build momentum since her Dr. Luke-produced debut single "Shower" reached No. 16 on the Hot 100 in August 2014. "Can't Get Enough," featuring Pitbull, spent a week at No. 1 on the Latin Rhythm Airplay chart in June and recent TV performances on the Today show and the 2014 Teen Choice Awards, among others, have brought even more attention to the Latin teen queen. Her meaty social media following (she's quickly approaching 5 million Facebook likes) has continued to rise as she tours with Katy Perry, Demi Lovato and Jason Derulo. With her debut full-length album set for release later this year, Becky G is on her way to becoming a bona fide power brand.
Billboard's 2014 21 Under 21 List