Katy Perry Fell Down

Katy Perry was her usual ditzy free-spirited self at MTV's Mexican music awards last night, when she decided it'd be fun to jump on top of a giant cake and then rub it all over herself.

Normally this is the sort of thing a person avoids, but Katy has never been much of a conformist.  She even seems to enjoy the part where she falls on her ass 10 times in a row.  Warning: don't try this at home, kids.