Rapper 50 Cent has been ordered to pay a Florida earphone manufacturer more than $16m in connection with a failed partnership to produce the entertainer’s line of headphones, federal court records show.

The 36-year-old rapper 50 Cent – real name Curtis Jackson III – believes he may not have much longer to live, and has hit out as his team, including his record label Interscope, for not helping him promote his music properly.

50 Cent has hit out at former G-Unit rapper Young Buck's allegations that he has "never seen a royalty check" from his time with the star's record label - insisting he was generously "overpaid" throughout his time with the hip hop group.