50 Cent Threatens To Stop Solo Albums

50 Cent has revaled to stop releasing solo material if his next album fails to outsell a new album by Kanye West.

The rapper - real name Curtis jackson - wants to "raise the stakes" and told SOHH.com, "If Kanye West sells more records than 50 Cent on September 11, I'll no longer write music."

He added, "I'll write music and work with my other artists, but I won't put out any more solo albums."

Graduation by West and Curtis by 50 Cent will be released in the US on September 11.