It's called "World Destruction" by John Lydon

Next time youre stuck for a song do what I do, type whatever lyrics you know into a google search (make sure to put quotation marks on it so you only search for the exact phrase). Chances are you'll find the song's lyrics listed on some lyrics site, along with the title and artist. I learned that trick looking for "You Can't Put Your Arms Around a Memory", which was used in season 2.