A music promoter plans to sue to block Michael Jackson from performing in London this year, claiming that a contract signed by the "king of pop" prevents him from giving a concert until July 2010, the head of the promotion company said on Monday.

U.S. pop star Michael Jackson gestures during a news conference at the O2 Arena in London March 5, 2009. Jackson said he will hold a series of final concerts in Britain later in the year.

New Jersey-based AllGood Entertainment Inc contends it signed an agreement in November with Jackson's manager, Frank DiLeo, committing the singer to perform in July 2010 along with his brothers from the Jackson Five and sister Janet Jackson.

Under the agreement, Michael Jackson cannot give another concert until that Jackson Family reunion show, said Patrick Allocco, managing partner at AllGood Entertainment.

AllGood Entertainment sent a cease and desist letter to DiLeo and to concert promoter AEG Live, which has signed Jackson to perform a series of 50 shows at London's 02 Arena starting in July, Allocco said. In the letter, AllGood Entertainment warned that its agreement with DiLeo barred Jackson from performing the London shows for AEG Live.

A source at AEG Live acknowledged the company had been contacted and called AllGood's claims meaningless. The source said rehearsals in Los Angeles are continuing in preparation for the July shows at the 02.

A representative for Jackson did not return calls.

Allocco said his company's plans to sue in federal court come after failed attempts to negotiate with Jackson and reach a deal to allow the London shows to go ahead.

"As of right now we've gotten zero cooperation from anyone, Frank DiLeo refuses to honor our agreement and that's why we're filing a lawsuit by week's end," Allocco said.

AllGood Entertainment said that its one-time concert featuring Michael Jackson is scheduled for July 3, 2010, at Texas Stadium in Irving, Texas. The concert would be available as a pay-per-view event over the Internet, Allocco said. 

Jackson could make up to US$30 million for the show, Allocco said. 

"Thirty million for one show is unheard of, that's why we're so frustrated," he said. "Frank DiLeo is standing in our way. AEG has been constantly frustrating our ability to get this show."

Jackson's series of concerts in London also have been touted as unprecedented. AEG has said that, all together, the shows will gather the biggest audience ever to see an artist in one city.

(China Daily/Agencies May 12, 2009)