Rapper 50 Cent has dropped a challenge on Kanye West. Fitty announced on Sohh.com that he’d give up recording if his rival’s next album, Graduation, outsold his own Curtis after they both hit record stores on Sept. 11.

“Let’s raise the stakes,” the Queens-born rapper said. “If Kanye West sells more records than 50 Cent on September 11, I’ll no longer (perform) music. I’ll write music and work with my other artists, but I won’t put out any more solo albums.” Fitty is probably just mad MTV put him at No. 8 on their all-time greatest MCs list.

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