Katy Perry Vs. Lady Gaga: Battle of the Performances (BEST TOUR OUTFITS)

July 21, 2014 AT 2:58 PM
Katy Perry and Lady Gaga are rocking some of the most amazing performance-wear I’ve ever seen, but who do you think has the most incredible look? So kicking things off with Gaga, she has worn some of the most incredible outfits during her ArtPo...