The world of pop is set for a monstrous battle, or at least a little monster-ous one as Madonna is reportedly set to take sides in a row between Kelly Osbourne and Lady Gaga - on the side of the Fashion Police star.
Osborne and Gaga fell out when Kelly commented on Gaga's weight gain, with the eccentric pop queen then received criticism from Gaga fans before saying: "Lady Gaga's fans are the worst", last October.
Lady Gaga: not seeing eye to eye with Kel (Photo: Will Alexander/WENN)
The feud then escalated when Gaga wrote an open letter on her own social network LittleMonsters.com which accused Oscorne and her E! Show of promoting bullying.
One would have thought that as Madonna often looks like Gaga's mum straining against the dying of the light, that she'd have sided with the 'Poker Face' star, but not according to Now Magazine, which states that Madge is firmly in the Kel camp.
Kelly Osborne: Madge on her side? (Photo: Flashpoint/WENN)
A source told the mag: "Kelly's annoyed to be axed from Madonna and Lourdes' clothing range but she won't turn down an ally like Madge."
Madge's dislike of Gaga may come from their similarities though, saying that although she "loves her", "imitation is the sincerest form of flattery" on stage last year.
Whatever happens, we're sure this diva deathmatch won't end prettily.