Updated: Wed, 28 Nov 2012 07:45:00 GMT | By Colleen Last
Famous celebrity feuds

Lily Allen and Courtney Love

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Lily Allen and Courtney Love clashed at an awards ceremony in London in 2010, where they reportedly had to be separated after a heated row. The next day, Lily took to Twitter to call the Hole singer a "paranoid drug addled lunatic" but denied that things had got physical. "I would never fight with her, as a rule I don't pick on crazy old ladies," she tweeted.

Courtney responded in kind, saying, "I don't pick fights with insanely deluded irrelevant friendless unattractive children who no one I know even close to likes."