What's the recipe for some of history's nastiest rock feuds? Take talented, outspoken and occasionally emotionally sensitive artists, then pit them against each other -- in a competition that can't possibly be measured in any objective way -- for the hearts and wallets of the record- and ticket-buying public. 

Whether they disagree on political matters, argue about who fired who or who's the better singer, disagree about what makes a live performance worth paying for, or even engage in shady multi-million dollar business deals behind each other's backs, you're bound to get some good headlines.

Together with Loudwire, we've rounded up the stories behind some of the nastiest rock feuds ever. For the most part, we're staying away from intra-band arguments (sorry, Kinks fans!) and sticking to the grenades thrown between the members of two different famous acts. OK, ring the bell!