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 "Encore", again saw Dre taking on the role of executive producer, and this time he was more actively involved in the music, producing or co-producing a total of eight tracks, including three singles. In November 2004, at the "Vibe" magazine awards show in Los Angeles, Dr. Dre was attacked by a fan named Jimmy James Johnson, who was supposedly asking for an autograph. In the resulting scuffle, then-G-Unit rapper Young Buck stabbed the man. Johnson claimed that Suge Knight, president of Death Row Records, paid him $5,000 to assault Dre in order to humiliate him before he received his Lifetime