Along with Russell Simmons, the producer of the Avett Brothers album "Magpie and the Dandelion" co-founded what record label? 
Def Jam Records
Rick Rubin
Frederick Jay "Rick" Rubin (born March 10, 1963) is an American record producer and former co-president of Columbia Records.
 Along with Russell Simmons, Rubin is the co-founder of Def Jam Records and also established American Recordings.
 With the Beastie Boys, LL Cool J, Public Enemy, and Run–D.M.C., Rubin helped popularize hip hop music.
Magpie and the Dandelion
Magpie and the Dandelion is the eighth studio album by folk rock group The Avett Brothers, released on October 15, 2013.
 The album was produced by Rick Rubin who produced their previous two full-length studio albums, 2009's "I and Love and You" and 2012's "The Carpenter".
 The band first announced they were working on the album in a June 12, 2013 interview and that the songs were all recorded during "The Carpenter"'s recording sessions.
 The album's title and release date, along with the first single from the album "Another is Waiting," were released on NPR's "All Songs Considered" on August 8, 2013.
 All eleven songs became available for streaming on October 9, 2013 on NPR's "First Listen."
Dana Nielsen
Dana Nielsen is an American mix engineer, audio engineer, record producer and saxophonist based in Los Angeles.
 Nielsen has worked with The Avett Brothers, Ruen Brothers, Red Hot Chili Peppers, Justin Timberlake, Adele, Neil Diamond, Linkin Park, System of a Down, Bob Dylan, Weezer, Rihanna, Sheryl Crow, and Christina Aguilera, among others.
 Nielsen has also composed music for TV commercials and TV shows including the hit shows Queer Eye for the Straight Guy and America's Next Top Model. Krush Groove
Krush Groove is a 1985 Warner Bros. film that was written by Ralph Farquhar and directed by Michael Schultz (who also produced the movie, along with George Jackson and Doug McHenry).
 This film is based on the early days of Def Jam Recordings and up-and-coming record producer Russell Simmons (renamed Russell Walker in the film), portrayed by Blair Underwood in his feature film debut.
 Russell Simmons was the film's co-producer and story consultant; he also had a cameo in the film as a club owner named Crocket. Russell Simmons Music Group
Russell Simmons Music Group or RSMG is a record label founded by hip-hop mogul Russell Simmons in a joint venture with Universal Music's Island Def Jam Music Group.
 Its president is Austin, Tony. Life After Death Row
Life After Death Row is a documentary on the musical career of the rapper Crooked I.
 The tell-all film was released in August 2006 and illustrates the trials and tribulations Crooked I endured while on the infamous Death Row Records.
 The film also takes the viewer on a journey with Crooked I on building his own record label Dynasty Entertainment.
 The film contains many guest appearances from other musical figures who share similar views of Crooked I.
 These individuals include Russell Simmons, Master P, Loon, Bun B, WC, RBX, Big C Style, Mopreme Shakur, Phobia, Eastwood, Spider Loc, Paperboy and more.
 Included with the DVD was a bonus CD, Crooked I's "Young Boss Volume 2" mixtape. Don Newkirk
Donald Newkirk is a musician and record producer known for his voice-overs on hip hop albums such as De La Soul's "Three Feet High and Rising" and 3rd Bass' song "The Gas Face".
 Newkirk is also a member of the underground hip hop group The Dix, produced by Prince Paul.
 Donald Newkirk is also the writer, producer, and singer for songs on his 'Funk City' album put together by Russell Simmons DefJam label.
 He's also produced the title song 'Small Thing' which was used as one of the soundtracks to the movie 'Livin Large'. Body Kiss
Body Kiss is the 29th studio album by The Isley Brothers on the DreamWorks label.
 Almost solely written, arranged, composed and produced by longtime collaborator R. Kelly, the album yielded the R&B hits "What Would You Do?"
 (which was also a Top 50 pop hit) and "Busted" (a duet with Kim Johnson of the sister group JS, who often backs up the Isleys on record and on tour) and made history again for the Isleys when it became the first album since the band's 1975 album "The Heat Is On" to hit number one on the album charts.
 It also became the first Isley Brothers album to "debut" at number-one and has since been certified gold by the RIAA.
 Other hits were the radio-ready "Prize Possession". Business as Usual (EPMD album)
Business as Usual is the third album from Hip Hop duo EPMD, released December 18, 1990 and their first on leading rap label Def Jam as a result of being signed over (along with Nice & Smooth) from their former label, Fresh Records.
 This album was also the first release by Def Jam as an imprint under its new Rush Associated Labels subsidiary, which allowed founder Russell Simmons more control and more ownership over its material, as the masters for proper Def Jam releases at that time were primarily owned by Sony Music's Columbia Records.
 Business as Usual was not as acclaimed as their first two albums, but was not considered to be a failure either.
 One notable aspect here was the debut of future Hip Hop star Redman, who appears on the tracks ""Hardcore"" and ""Brothers on My Jock"".
 Three singles were released from the album, "Gold Digger", "Rampage (Slow Down, Baby)" featuring LL Cool J and "Give the People".
 In 1998, the album was selected as one of The Source's 100 Best Rap Albums. Emotionalism (album)
Emotionalism is an album released in 2007 by folk artists The Avett Brothers under Ramseur Records.
 The album's widespread success launched The Avett Brothers into the national spotlight, catching the eye of producer Rick Rubin who would go on to produce their next album "I And Love And You".