Heavy metal band Slipknot has sent a cease and desist order to executives and advertising agencies of Burger King regarding ads and website featuring Coq Roq, a rock band that has a strong resemblance to Slipknot, reports ChartAttack. "It is obvious that the television advertising and website are designed to conjure up the image and persona of a live performance of Slipknot," the band's attorney Howard Weitzman wrote in a letter to the company.

BK has retaliated by filing its own complaint against Slipknot, seeking to have a judge declare that its campaign is fair game.

Last month, the campaign drew attention when sexual double entendres appeared on the CoqRoq.com site but were removed overnight. The deleted content included captions under photos of young women that read: "Groupies love the Coq" and "groupies love Coq."

The CoqRoq site was created by Crispin Porter & Bogusky of Subservient Chicken fame.