There is nothing we enjoy more here at HuffPost Entertainment than when two celebs air their dirty laundry in public and have a good old-fashioned feud. And luckily for us, there have been plenty of messy, long-running, and brilliantly bitchy ones over the years.
From Cheryl Cole and Lily Allen's barbed comments, to Sharon Osbourne and Dannii Minogue's mother of all catfights, we relive some of our favourites...
*sharpens claws*