According to a lawsuit filed Tuesday, David Keeler was attacked after he photographed Aguilera leaving the club at about 2 a.m. on May 21, 2003. After Aguilera and the bodyguard got into a car, Keeler said the guard told him he "needed to learn respect" and punched and spat on him.
Aguilera's representative, Meghan Prophet, issued a rebuttal Wednesday. "Christina has no reason to believe that such an incident did occur, nor did she witness such an incident," Prophet said.
The suit also names Anthony Davis, owner of A.D. Entertainment, and Three Wishes Tour Inc., saying they hired the bodyguard.
Davis said he had not seen the suit and declined comment. A listing for Three Wishes Tour could not be located.
The suit seeks unspecified damages.