Big League Entertainment president MIKE GREEN has threatened to "sue the hell out of" rapper TI and his manager for breach of contract over a performance in New York City last month (SEP06). Green alleges that TI, real name CLIFFORD HARRIS JR, violated an agreement with the promotions company when he performed at New York's Radio City Music Hall for Boost Mobile Rock Corps volunteers. TI was scheduled to headline Saturday's (30SEP06) Hot 97 concert co-sponsored by Back to School Jam, which instead ended with rapper DMX's abbreviated set and a fan injury. Green tells MTV News, "People think TI didn't show up that night, but I didn't allow him to make it. "He did a show in the area just a week before and breached what he had with us, because he wasn't supposed to perform in the area for 30 days before our show. "So I didn't allow him to perform. I'm going to sue the hell out of him."