Beat that heat, gurl!
The soaking wet Cali gal was seen laughing with friends at the Raging Waters water park outside of El Lay Sunday.
The curvy singer could hardly contain her lady lumps during the rides, and was seen readjusting her bikini top throughout the day-venture. Luckily for Katy, her pink-haired buddy and man-friends were there to keep an eye out for wardrobe malfunctions.
Too bad John wasn't invited to come along.
We know he LURVES to see KP in a bikini!
[Image via AKM-GSI.]