Egotastic.com  posted picts of the pop diva took to the waterpark on a tremendously hot day here in Southern California and it looks like they cleared out a few slippery when wet rides just for Katy and her extensive entourage, none of whom were fast enough to run toward their mistress with coverup when the waves took Katy's bottoms down to her thighs, and her top nearly off 

NSFW photos HERE!  Warning, bare butt if you click!