Dr. Dre Nas' "Hustlers", and several beats on Eminem's Relapse album. Soul and R&B pianist Mark Batson, having previously worked with The Dave Matthews Band, Seal and Maroon 5 has been credited as the architect of this sound. Besides Batson, Aftermath producer and understudy of Dre's, Dawaun Parker, who has named Q-Tip and J Dilla as his primary influences, is thought to be responsible for giving Dre's newest beats an East Coast feel. Dr. Dre has said that his primary instrument in the studio is the Akai MPC3000, a drum machine and sampler, and that he often uses as many as four
Dr. Dre not appear on the final version of the album. Two genuine singles – "Kush", a collaboration with Snoop Dogg and fellow rapper Akon, and "I Need a Doctor" with Eminem and singer Skylar Grey – were released in the United States during November 2010 and February 2011 respectively: the latter achieved international chart success, reaching number four on the "Billboard" Hot 100 and later being certified double platinum by the RIAA and the Australian Recording Industry Association (ARIA). On June 25, 2010, the American Society of Composers, Authors and Publishers honored Dr. Dre with its Founders Award for inspiring other