2001 (Dr. Dre album) were later cut from the final track list. The tracks have been leaked later on several mixtapes, including "Pretox". The album's production expanded on that of "The Chronic", with new, sparse beats and reduced use of samples which were prominent on his debut album. Co-producer Scott Storch talked of how Dr. Dre used his collaborators during recording sessions: "At the time, I saw Dr. Dre desperately needed something. He needed a fuel injection, and Dre utilized me as the nitrous oxide. He threw me into the mix, and I sort of tapped on a new flavor with my whole piano
Dr. Dre June 2008 report by "Rolling Stone" magazine. After another delay based on producing other artists' work, "Detox" was then scheduled for a 2010 release, coming after 50 Cent's "Before I Self Destruct" and Eminem's "Relapse", an album for which Dr. Dre handled the bulk of production duties. In a Dr Pepper commercial that debuted on May 28, 2009, he premiered the first official snippet of "Detox". 50 Cent and Eminem asserted in an interview on BET's "106 & Park" that Dr. Dre had around a dozen songs finished for "Detox". On December 15, 2008, Dre appeared in the remix of