Leighton Meester and Minka Kelly. Both of these talented ladies are models and actresses, but which one of them is also a recording artist? If you think you've seen Kelly up on the stage belting out songs, you've got the wrong one. Meester has a number of charting singles to her name as well as one album. Having said that, given the similarities between them, it wouldn't surprise us at all if Kelly could sing, too.
Confusingly for audiences, both Meester and Kelly have appeared on screen at the same time and interacted. In the 2011 movie 'The Roommate', there was a scene where Meester's character attempted to murder Kelly's (presumably because she couldn't stand how much she looked like her!), which gave viewers a hard time trying to work out which character was in danger.