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 musicians. In an August 2010 interview, Dr. Dre stated that an instrumental album titled "The Planets" is in its first stages of production; each song being named after a planet in the Solar System. On September 3, Dr. Dre showed support to longtime protégé Eminem, and appeared on his and Jay-Z's Home & Home Tour, performing hit songs such as "Still D.R.E.", "Nuthin' but a 'G' Thang", and "Crack a Bottle", alongside Eminem and another protégé, 50 Cent. Sporting an "R.I.P. Proof" shirt, Dre was honored by Eminem telling Detroit's Comerica Park to do the same. They did so, by