5. Chris Brown
Not happy at just hitting out at The Rock, CM Punk decided to take aim at R & B star Chris Brown. February 20th 2012 was the day that Punk started a Twitter war for the ages - 'I would like @chrisbrown to fight somebody that can defend themselves. Me curb stomping that turd would be a #wrestlemania moment.' Chris Brown, of course, didn't exactly appreciate Punk's sentiment and hit back with a tweet of his own that would swiftly be deleted. Their war of words lasted for a couple of days until Brown rattled off a list of 80's Superstars exclaiming that he misses 'real' wrestlers who are, and I quote, '#Notnopunks.' Punk's simple, eloquent reply would simply be '#aintnowomanbeater.' Punk wins.