Dr. Dre Fiona Apple and Alanis Morissette, In the past few years Elizondo has since worked for many of Dr. Dre's productions. Dr. Dre also told "Scratch" magazine in a 2004 interview that he has been studying piano and music theory formally, and that a major goal is to accumulate enough musical theory to score movies. In the same interview he stated that he has collaborated with famed 1960s songwriter Burt Bacharach by sending him hip hop beats to play over, and hopes to have an in-person collaboration with him in the future. Dr. Dre has stated that he is a perfectionist
Dr. Dre Time's Sake", and "3 a.m." (The only track Dre did not produce was the Eminem-produced single "Beautiful".) On April 20, 2010, "Under Pressure", featuring Jay-Z and co-produced with Scott Storch, was confirmed by Jimmy Iovine and Dr. Dre during an interview at Fenway Park as the album's first single. The song leaked prior to its intended release in an unmixed, unmastered form without a chorus on June 16, 2010; however, critical reaction to the song was lukewarm, and Dr. Dre later announced in an interview that the song, along with any other previously leaked tracks from "Detox"s recording process, would