Jamiroquai front man Jay Kay has vowed to sue the man who he alleges head-butted him in the face.

The singer, who claims he did not attack photographer Alan Grisbrook, says he was assaulted as he left the London premiere of the new Star Wars film early last Wednesday morning.

“He’s not going to get away with it,” he told a UK tabloid. “I’m going to take action. I’ve already given the police a full statement about what happened. I’m furious.”

Kay also alleges that the photographer kicked his brand new car — a dark blue Bentley Arnage T — and says Grisbrook should be punished for the damage caused.

As reported yesterday, a police spokesperson confirmed that two males had made “contradictory allegations” of assault against each other.