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 Dogg's quadruple platinum debut "Doggystyle", and mentored producers such as his step-brother Warren G (leading to the multi-platinum debut "Regulate...G Funk Era" in 1994) and Snoop Dogg's cousin Daz Dillinger (leading to the double-platinum debut "Dogg Food" by Tha Dogg Pound in 1995). In 1996, Dr. Dre left Death Row Records to establish his own label, Aftermath Entertainment. He produced a compilation album, "Dr. Dre Presents the Aftermath," in 1996, and released a solo album, "2001," in 1999. During the 2000s, Dr. Dre focused on producing other artists, occasionally contributing vocals. Dr. Dre signed Eminem in 1998 and 50 Cent