Numerous celebs have gotten into some very public brawls, and some rivalries have lasted many years.
Most recently, Lindsay Lohan shaded both Cody Simpson and his new sweetheart, Miley Cyrus. Simpson actually used to date Lohan's sister. Another thing that connects them? Lohan was a judge on the Australian version of 'The Masked Singer,' which Simpson just won. Well, in a since-deleted Instagram post that featured a photo of the former couple, Lohan wrote: "When you realise you failed. And you settle for less @codysimpson. Family is everything you won the masked singer but you lost on your future."
Living for moments like these? Click through this gallery for a look at some of Hollywood's most infamous catfights.