Eminem and pop singer Dido are reportedly engaged in a legal battle over royalties for The Marshall Mathers LP's smash hit, "Stan."

Though reports have just surfaced, sources say the two parties have been battling over money for 4 years. Dido is reportedly seeking $1.8 million dollars for the use of her vocals on the track.

"'Stan' was a massive hit and Dido wants to be paid for the part she played in it all," sources told the British Magazine. "Eminem is in discussions with her, but it's only fair that she's paid for her work and efforts."

"Stan's" hook samples Dido's vocals from the song "Thank You." The British singer went on to sell over 12 million records worldwide following the success of "Stan."

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Q-Tip has just canceled his upcoming European Tour and is putting the finishing touches on his long awaited sophomore album.

Tip was scheduled to tour Europe including a stop in Ireland starting next month. However, the eclectic rapper is said to have cancelled his entire touring schedule to focus on his album. Venues are offering fans full refunds at the point of purchase.

While heads are still awaiting the A Tribe Called Quest reunion, Tip is finalizing his new album to be called, Open. The LP will mark the Queens emcee's third solo effort. Kaamal The Abstract, initially scheduled to drop through Arista Records, was shelved and Tip's new offering will be released on Dreamworks Records.

Q-Tip's Open will feature guest appearances by Common, Andre 3000 and D'Angelo.