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 magazine's list "The Immortals: The Greatest Artists of All Time". Kanye West wrote the summary for Dr. Dre, where he stated Dr. Dre's song "Xxplosive" as where he "got (his) whole sound from". In November 2006, Dr. Dre began working with Raekwon on his album "Only Built 4 Cuban Linx II". He also produced tracks for the rap albums "Buck the World" by Young Buck, "Curtis" by 50 Cent, "Tha Blue Carpet Treatment" by Snoop Dogg, and "Kingdom Come" by Jay-Z. Dre also appeared on Timbaland's track "Bounce", from his 2007 solo album, "Timbaland Presents Shock Value" alongside, Missy Elliott,