Album: Break-Up (with Pete Yorn, 2008)

Scarlett sang a brief ditty in The Other Boelyn Girl (2008), but her career as a singer (not just a singing actress) has been simmering beneath the surface for years. She had a song on a celebrity benefit album in 2006, then released her debut, Anywhere I Lay My Head (an album of mostly Tom Waits covers), in 2008.

However, she didn't really wow anyone until 2009, with the release of Break Up, an album of duets with Pete Yorn that the pair had recorded in 2006, and its earworm single "Relator." But it's hardly surprising Scarlett is a good singer—wait for it, wait for it —the girl's got a set of lungs on her.