Age: 19
The same girl who became Guiness Book of World Records’ “Most Charted Teenager” (with her hits “Party in the U.S.A.,” “The Climb” and “Can’t Be Tamed,” to name a few) also has her own rap sheet of wildest moments. But unlike a lot of her contemporaries, Cyrus remains unapologetic for her typical teenage behavior and continues to be one of the most prolific wunderkinds in the industry. Her latest film, LOL, is set to hit theaters this week.