Katy -- in a brain-patterned two-piece and fishnets -- look genuinely delighted as she settled the pizza right on her lap.
Everyone else looked pretty stoked about it too.
Yay for pizza!
Katy can be seen smiling from ear to ear as Diplo does his thing on the turntables. Is that love in the air? Or just the smell of melty cheese and pepperoni?
This isn't the first time Perry's been pumped about pizza -- remember her 'This Is How We Do' suit?
Or that pizza hoodie?
She's not messing around.