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Portia DeRossi, Ellen DeGeneres, Kelly Clarkson

Kelly Clarkson likely earned some new fans with her affectionate acceptance speech. The singer seemed to be having the time of her life on the stage, and off -- where she shamelessly photobombed Portia de Rossi and Ellen DeGeneres.

PHOTOS: MOST MEMORABLE MOMENTS FROM THE 2013 GRAMMYS NIGHT

Who did Kelly Clarkson photobomb? And who was amused/scared silly by Katy Perry's ginormous boobs? We've got you covered.