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
2001 (Dr. Dre album) by Dre have been noted to be penned by several ghostwriters. Royce da 5'9" was rumored to be a ghostwriter on the album. He was noted for writing the last track, "The Message"; however, he is not credited by his legal name or alias in the liner notes. A track he recorded on the album, originally named "The Way I Be Pimpin'", was later retouched as "Xxplosive"; this version has Dr. Dre rapping penned verses by Royce and featured Royce's vocals on the chorus. Royce wrote several tracks such as "The Throne Is Mine" and "Stay in Your Place" which