More than three years after releasing his hit 'I Get Money,' 50 Cent has gotten slapped with a lawsuit for the track. Tyrone "Caliber" Simmons, an aspiring MC from Atlanta, Ga., has pegged the G-Unit rapper with a copyright infringement suit, claiming he is the original license holder for the instrumental to the track.

The 28-year-old states that he bought the exclusive license from producer William "Apex" Stanberry, giving him sole ownership over the track. Simmons asserts that 50 Cent, G-Unit, Shady Records and Aftermath knowingly took the instrumental and used it for 'I Get Money,' which appeared on his third album 'The Massacre.'

"The misappropriation of copyright-protected material is an endemic problem in the music business, and particularly in the genre of hip-hop/rap. This is one such case," said attorney Louis D. Tambaro. "Our client was granted exclusive rights to the 'I Get Money' instrumental and was unceremoniously cut out of the loop when the defendants realized they had a huge hit on their hands."

'I Get Money' was released in June 2007, peaking at No. 4 on Billboard Hot Rap Tracks chart. The single, which was named as one of the best tracks of the year by Rolling Stone and Time, later spawned a high voltage remix featuring Diddy and Jay-Z.

50 Cent, 'I Get Money'