Ke$ha dropped a pretty crazy bomb the other day during an interview...

Apparently her brother has been filming a documentary about her for MTV for over 2 years and got some pretty crazy footage.

"He got all the things you would want to see and all the things you wouldn’t really want to see -- making out with dudes, drinking my own pee, jumping out of a building, jumping out of aeroplanes, swimming with sharks ..." said Ke$ha.

Check out the full story at TMZ.com