Whose Side Are You On? Christina Aguilera vs. ...

From The Wanted to Kelly Osbourne, see who's hit a sour note with the singer


Kissed, then dissed? When the Biebs appeared on The Voice, Aguilera seemed to scowl at the teen star after he stopped by her chair for a quick hello. Though their brief interaction went viral, the judge defended herself on Twitter, writing, "The media loves spinning stories... Can't a girl have a little #BieberFever after getting kissed by the Biebs?"