Def Jam Recordings is an American record label, focused primarily on hip hop and urban music, owned by Universal Music Group, and operates as a part of The Island Def Jam Music Group. In the UK, the label takes on the name Def Jam UK and is operated through Mercury Music Group, while in Japan, it is Def Jam Japan operating through Universal Sigma Music.

Def Jam was created by Rick Rubin in his dorm room in Weinstein Hall at New York University and its first release was a single by his punk-rock group Hose. Russell Simmons joined Rubin shortly after they were introduced to each other by Vincent Gallo. The first single released with a Def Jam Recordings logo was T La Rock & Jazzy Jay's "It's Yours." The first releases with Def Jam Recordings catalog numbers were LL Cool J's "I Need a Beat" and the Beastie Boys' "Rock Hard," both in 1984. The singles sold well, eventually leading to a distribution deal with CBS Records (which would later become Sony Music Entertainment) through Columbia Records the following year. This created a short-lived subsidiary label called OBR Records, catered toward R&B artists — the first artist signed to that imprint was Oran "Juice" Jones, who enjoyed success with his hit single "The Rain". Def Jam also signed its first and only thrash metal band, Slayer, in 1986, and the band's debut album was one of only two Def Jam releases to be distributed through Geffen Records, as opposed to Columbia. As the decade drew to a close, the label signed Public Enemy, whose controversial lyrical content garnered the company both critical acclaim and disdain. Lyor Cohen became president of Def Jam in 1988, after winning a power struggle with Rubin, who would shortly thereafter leave the company to form Def American Recordings (now known as American Recordings). Rubin would take Slayer with him to Def American in its initial stages.

Original Concept were an 80s hip hop group from Long Island, New York, arguably best known for their single, “Can You Feel It.” They only made one album and it was notable for the absence of lyrics on many of the tracks. The group are perhaps better known for their production prowess and instrumentals than anything else.

In the early 1980s, a group of young men at WBAU FM formed a group called the "Concept Crew." Their show “The Operating Room” was broadcast on Monday nights from Adelphi University on the same station which featured the Spectrum City DJs (Chuck D and Flavor Flav) who later went on to form Public Enemy. The members were Doctor Dré, T-Money, Rapper G, Easy G and Wildman Steve. By 1986, the group began calling themselves Original Concept and had released their first record, "Knowledge Me" in February of that year. The B-Side of "Knowledge Me" went on to become their first single, "Can You Feel It." The single has since gone on to become one of the most sampled source records in hip-hop music.

Curtis James Jackson III (born July 6, 1975), better known by his stage name 50 Cent, is an American rapper, entrepreneur, investor, record producer, and actor. He rose to fame with the release of his albums Get Rich or Die Tryin' (2003) and The Massacre (2005). His album Get Rich or Die Tryin' has been certified eight times platinum by the RIAA.

Born in the South Jamaica of Queens, New York City, Jackson began drug dealing at the age of twelve during the 1980s crack epidemic. After leaving drug dealing to pursue a rap career, he was shot at and struck by nine bullets during an incident in 2000. After releasing his album Guess Who's Back? in 2002, Jackson was discovered by rapper Eminem and signed to Interscope Records. With the help of Eminem and Dr. Dre, who produced his first major commercial successes, Jackson became one of the world's highest selling rappers. In 2003, he founded the record label G-Unit Records, which signed several successful rappers such as Young Buck, Lloyd Banks, and Tony Yayo.

Mel Colm-Cille Gerard Gibson, AO (born 3 January 1956) is an American actor, film director, producer and screenwriter. He was born in Peekskill, New York, moved with his parents to Sydney, Australia when he was 12 years old, and later studied acting at the Australian National Institute of Dramatic Art.

After appearing in the Mad Max and Lethal Weapon series, Gibson went on to direct and star in the Academy Award-winning Braveheart. In 2004, he directed and produced The Passion of the Christ, a film portraying the last hours in the life of Jesus.

Gibson was born in Peekskill, New York State, the sixth of 11 children, and the second son of Hutton Gibson and Irish-born Anne Patricia (née Reilly, died 1990). His paternal grandmother was the Australian opera contralto Eva Mylott (1875–1920). One of Gibson's younger brothers, Donal, is also an actor. Gibson's first name comes from Saint Mel, fifth-century Irish saint, and founder of Gibson's mother's native diocese, Ardagh, while his second name, Colm-Cille, is also shared by an Irish saint and is the name of the parish in County Longford where Gibson's mother was born and raised. Because of his mother, Gibson holds dual Irish and American citizenship.

Russell Wendell Simmons (born October 4, 1957) is an American business magnate. He and Rick Rubin founded the pioneering hip-hop label Def Jam. He also created the clothing fashion lines Phat Farm, Argyleculture, and American Classics.

Russell Simmons is the third richest figure in hip hop, having a net-worth estimate of $340 million as of April 2011.

Simmons was raised in Queens, New York. He is the son of Daniel Simmons, Sr., a public school administrator, and Evelyn Simmons, a New York City park administrator. His older brother is abstract expressionist painter Daniel Simmons, Jr., and his younger brother is Rev. Joseph Simmons ("Run" of Run-DMC).

Def Jam became just one piece in Simmons' corporation, Rush Communications, Inc., which included a management company, a clothing company called Phat Farm, a movie production house, television shows such as Def Comedy Jam, a magazine and an advertising agency. His nephew Jamal "Redrum" Simmons and his group Flatlinerz released the highly controversial album U.S.A. in 1994 on Def Jam but was dropped from the label soon after. Rick Rubin sold his share of the record company for $100 million to Universal Music Group in 1996. Simmons produced Def Poetry, begun as a television series on HBO, which also branched into a Broadway live stage production in 2002. In 2000, he co-founded the Internet start-up 360 Hip Hop which he later sold to BET.