The lawyer representing Britney Spears in her child custody battle has dramatically asked to quit due to a "communication breakdown" between himself and the troubled pop princess.

Kevin Federline has requested an emergency meeting with Britney Spears lawyers after a videotape emerged of her driving through a red light with her two sons in the car.

Britney Spears is set to fire the new lawyer in her custody battle - after just one day in the job.