Chris Martin punched the editor of Q magazine after he made a joke about his wife Gwyneth Paltrow.
The Coldplay frontman reportedly lashed out at editor Paul Rees at the magazine's annual awards show earlier this month when Rees made a quip about Gwyneth's ex-fiance Brad Pitt.
During an acceptance speech at the Q Awards earlier this month - where Coldplay won the Best Album prize for "Viva La Vida, Or Death And All His Friends" and were named the Best Act in the World Today - Chris declared his admiration for pop group Girls Aloud.
Later in the evening, Paul complimented the singer on his taste in women. Chris revealed he has such a big crush on Girls Aloud his wife had said he was only allowed to leave her if it was for one of the group.
In return, Gwyneth - who dated a string of Hollywood hunks before she married Chris, including Brad Pitt, Ben Affleck and Luke Wilson - had chosen boy band Westlife as her fantasy group.
Shocked Gwyneth had not picked a Hollywood A-lister, Paul unwittingly replied: "You could have at least told her Brad Pitt."
According to website Holy Moly, a furious Chris reportedly replied: "She was engaged to him, you f***er."
In an attempt at reconciliation Paul put his arm around Chris and tried to comfort him by reminding him Gwyneth had dumped Brad whereas she had married Chris.
Unimpressed by the limp apology, Chris punched Paul in the chest, allegedly calling him a "****".
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