#Video: @KatyPerry warns not to mess with #LadyGaga ...
YouTubers KNOW not to mess with the Gaga and her billion plus hits ... however, Katy Perry just really really really really really wants to emphasize this point!
"you're a wh#re, and I don't mean that in a good way ..."
Tears ... I'm in tears ...
BWAHAHAH!! LOVE IT!!