Was I on drugs while buying music?

What is this crap on my ipod?!?! Did this use to be music and it somehow warped into this weird crazy beat and what ever those instruments are.  Every other word is "shit "and something about "walking on a tight rope".  Here I am, all chilling out, working on the computer and listening to some music when some really weird and somewhat disturbing music comes on.  I hope I didn't pay for this!