Eminem is suing Apple for using his hit Lose Yourself in a TV advert without permission.
He claims copyright infringement over an ad for the Apple iTunes' download music store on MTV last year. It featured a young boy singing along to Lose Yourself while playing an iPod.
"At no time did Apple, Chiat/Day or MTV receive authorisation or permission to record, reproduce, perform, transmit, copy, use or otherwise exploit the composition for any purpose," said the lawsuit.
"Defendants have acted intentionally, recklessly, willfully and in bad faith."
The lawsuit went on to say that Eminem has never endorsed any product but if he did it would be for in excess of £6 million.