Katy, gorl, really? WA is one of the best song of the TD era and you went and ruined it like that? Why in the hell wouldn't you just stand on the stage and sing it like any ballad that you usually slay? But no, you decided to be "artistic" and float around in the air? Gorl, that was a hot ass mess?
I didn't think she was copying P!nk... Katy already did this kind of performance at the 2011 Grammys. (and yes I know P!nk was 2010, but this isn't a new thing for Katy).