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ELLE VS. HEIDI
Since the 1980s, supermodel Elle Macpherson (left) has been dubbed The Body for her statuesque figure – and she's even used the name in her skincare and lingerie lines.
Now she's got some competition: Heidi Klum boasts in new Victoria's Secret commercials, "They call me The Body – and now I have a bra named after me."
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CHRISTINA vs. MARIAH
Christina Aguilera told GQ in May that Mariah Carey was "never cool to me" and that at a 2001 party she had "really derogatory things to say to me."
Carey told Access Hollywood that the allegations are "sad yet predictable" and that she'll "keep her in my prayers." Aguilera's response? Her comments were taken out of context.
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MARTHA VS. DONALD
First, Martha Stewart said her version of The Apprentice tanked because it had to share the airwaves with Donald Trump's original.
Then, Trump said her "terrible" performance and "totally unconvincing demeanor" were to blame.
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MISCHA VS. PARIS
Mischa Barton told a British tab that Paris Hilton "does steal people's boyfriends" – but her rep later said Barton was joking.
Hilton tells PEOPLE: "I don't even know the girl. I could care less."