Someone probably should have told Katy Perry that it is an unspoken rule to never, ever, ever wear a bikini when you’re at a water park.

Why? Well ladies, you know yourself: a rogue wave is a force to be reckoned with. Not only can it destroy your hair and make-up, it can also de-pant you in the blink of an eye. Unfortunately Katy Perry learned this the hard way.

The Daily Mail reports that the singer was enjoying a trip to Raging Waters in San Dimas, California, yesterday when she ended up flashing a little bit more than she intended.

Katy, who is known for her love of amusement parks, was in the middle of playing on a water slide when her bikini bottoms slipped down and she bared her arse to the public. Morto.

The dangers of the waterslide: Katy accidentally flashes her bum.

However, we have to commend Katie. While the rest of us would have started begging for the ground to swallow us up there and then, Katie simply yanked her pants up, started laughing hysterically and asked if she could have another go on the slide while her fans cheered her on.

Hmm…we don’t know about you but we imagine if we had a couple of hundred people cheering us on after our bikini bottoms landed around our ankles, we’d probably be even more embarrassed about the entire situation.

There’s no denying it, Katy Perry is a trooper. Although if we had a backside like hers, we probably wouldn’t mind accidentally flashing to the public either.