Garry Marshall Shider (July 24, 1953 – June 16, 2010) was an American musician and guitarist. He was musical director of the P-Funk All-Stars for much of their history. He was inducted into the Rock and Roll Hall of Fame in 1997, with fifteen other members of Parliament-Funkadelic.
In 1971, Clinton produced several tracks by United Soul with input from members of Funkadelic. The songs "I Miss My Baby" and "Baby I Owe You Something Good" were released as a one-off single by Westbound Records in 1971 under the group name U.S. Music with Funkadelic. All the tracks recorded with Clinton in 1971 were released by Westbound in 2009 as the album U.S. Music With Funkadelic. After producing United Soul, Clinton then invited Shider and Mosson to join Parliament-Funkadelic. Two United Soul songs were rerecorded on later Funkadelic albums with Shider as a member. Clinton groomed Shider for an important role in the P-Funk roster, which Shider joined full-time in 1972. He was a prominent contributor to albums by both Parliament and Funkadelic
until the dissolution of those two bands in the early 1980s, after which he continued to work regularly with Clinton's P-Funk All-Stars.
During Parliament-Funkadelic performances Shider was known for appearing in a diaper, making him instantly recognizable on stage and earning him the nickname "Diaper Man". Shider is featured prominently in many hit songs like "Cosmic Slop," "Getting to Know You," and "One Nation Under a Groove". He co-wrote many noteworthy Parliament-Funkadelic songs, and he made important contributions to P-Funk spin-off acts including Bootsy Collins and Eddie Hazel.
Shider has been featured in Guitar Player Magazine three times, and once in the Japanese version. He has been featured in Who's Who in Music and appeared on a compilation album by Paul Shaffer of the David Letterman band, and also on rock group The Black Crowes' 1996 album Three Snakes and One Charm. Shider has also appeared on Saturday Night Live several times, the Late Show with David Letterman, The Arsenio Hall Show, New York Undercover, The Tonight Show, and others. He appeared in the films PCU and The Night Before; both of which included songs he wrote and performed. He has also had songs featured in the film Bad Boys, with Sean Penn, as well as being the recipient of several Grammy nominations for songs like "Stomp" by Kirk Franklin, which used "One Nation Under a Groove" as its musical inspiration. The song won Song of the Year at the GMA Dove Awards.
Shider released a solo single in 1988 entitled "Beautiful" The attempt to reconcile P-Funk's distinct sound with that of late-80s synthpop yielded no chart success. He released two full albums in 2002, Diaper Man, The Second Coming and Diaperman Goes Starchild