7. Earl Sweatshirt: 21 Under 21 (2014)

Earl Sweatshirt

21 Under 21 Main Page

Birthdate: Feb. 24, 1994 (Age: 20)

Last Year's Rank: 5

Why He's Hot: As Odd Future's irreverent empire keeps humming along, so does the career of Earl Sweatshirt. Even as the promo cycle for 2013's Doris wound down, Earl managed to stay in the forefront of alternative hip-hop. The first quarter of 2014 saw the Los Angeles native trek through the U.S., Australia and Europe on the Wearld Tour. Meanwhile, nocturnal television viewers were treated to a third season of off-kilter sketch comedy from Earl and many of his comrades via Adult Swim's Loiter Squad. But even Earl is serious every once in a while. When Taylor Swift's booty-shaking "Shake It Off" video premiered, he accused her via Twitter of "perpetuating black stereotypes" and helped spark a dialogue on the subject.

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Billboard's 2014 21 Under 21 List