In September 2009, Busta Rhymes had announced that he was working on his ninth studio album, alongside Canadian producer Boi-1da, entitled The Chemo. At the time, he stated that the project was 80% finished. In May 2010, Busta Rhymes had reportedly changed the title of his ninth album from The Chemo to Extinction Level Event 2, making his ninth effort a sequel to his 1998 album Extinction Level Event (Final World Front).
