Rappers Kanye West and 50 Cent were once rivals in the rap music industry. They still like to bring drama with each other to the rap music world to this day. They even released an album at the same time back in 2007 which brought even more competition between the rival rappers. 50 Cent swore to Rolling Stone magazine that he would sell a lot more albums than West. He also vowed to do something drastic with his career if he didn't come out on top over Kanye West. Did he come out on top and sell more albums? What did he once vow to do if he didn't sell more albums than West? And, did he live up to his promise?