Justin Bieber is gonna have to do a lot more than say he's sorry to get out of this one!
Yikes! This could get ugly.
Take a listen to both songs (below) to hear the very recognizable riff!
Christina Aguilera didn't just come here to Say Something- she came here to SING!
Seriously, we thought we might need a box of tissues after this super emotional performance!
Ch-ch-check out the video (above) to see the tear-jerking, inspired performance of the moving hit Say Something!