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 such hit songs that year as "Family Affair" by Mary J. Blige. "Rolling Stone" magazine thus named him the second highest-paid artist of the year. Dr. Dre was ranked 44th in 2004 from earnings of $11.4 million, primarily from production royalties from such projects as albums from G-Unit and D12 and the single "Rich Girl" by singer Gwen Stefani and rapper Eve. Forbes estimated his net worth at US$270 million in 2012. The same publication later reported that he acquired US$110 million via his various endeavors in 2012, making him the highest–paid artist of the year. Income from the 2014