12 Breakout Stars of 2012
Carly Rae Jepsen
Jepsen's debut single, "Call Me Maybe," went viral after Justin Bieber, Selena Gomez, Big Time Rush and Ashley Tisdale uploaded a lip dub video to YouTube. The song became a surprise smash, selling more than 10 million copies worldwide. The singer released her debut album, Kiss, on Sept. 14.