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.

Dante Terrell Smith (born December 11, 1973) is an American actor and MC, known by the stage names Mos Def ( /ˌmoʊsˈdɛf/) and Yasiin Bey. He started his hip hop career in a group called Urban Thermo Dynamics, after which he appeared on albums by Da Bush Babees and De La Soul. With Talib Kweli, he formed the duo Black Star, which released the album Black Star in 1998. He was a major force in late 1990s underground hip hop while with Rawkus Records. As a solo artist he has released the albums Black on Both Sides in 1999, The New Danger in 2004, True Magic in 2006, and The Ecstatic in 2009.

Although he was initially recognized for his musical output, since the early 2000s, Mos Def's screen work has established him as one of only a handful of rappers who has garnered critical acclaim for his acting work. He is well known for his portrayal of Brother Sam in the American drama series Dexter. Mos Def has also been active in several social and political causes.

He was born Dante Terrell Smith in Brooklyn, New York City, the son of Sheron Smith and Abdul Rahman. He was raised by his mother in Brooklyn; his father lived in New Jersey. While his father was initially a member of the Nation of Islam and later an active member in the community of Imam Warith Deen Mohammed, who merged into mainstream Islam from the Nation, Mos Def was not exposed to Islam until the age of 13. At 19, he took his shahada, the Muslim declaration of faith. He is friends with Ali Shaheed Muhammad and Q-Tip of A Tribe Called Quest.

Def Jef is the stage name of Jeffrey Fortson (born September 27, 1966), an American alternative hip hop musician and rapper of the late 1980s and early 1990s. He was born in Harlem, New York City, New York, USA.

His debut album was 1989's Just a Poet With a Soul, which won critical acclaim for sociopolitical lyrics and original beats. Additionally, he was a member of the West Coast Rap All-Stars, a collaboration of West Coast-based hip hop artists who released the anti-violence single "We're All in the Same Gang" in 1990. He performed on the television variety show In Living Color in 1990.

After his second album, Soul Food, was released, Def Jef moved into production full-time. Since the 1990s, he has produced, written, arranged and remixed artists including Nas, Snoop Doggy Dogg, Mary J. Blige, Kimberley Locke, Maxwell, Avant, Tupac Shakur, and Shaquille O'Neal. He has worked with Krayzie Bone and Thugline Records.

He produced the theme songs for the Disney sitcom That's So Raven and The Game.

James Joseph Brown (May 3, 1933 – December 25, 2006) was an American singer, songwriter, musician, and recording artist. He is the originator of funk music and is a major figure of 20th century popular music and dance.

In a career that spanned decades, Brown profoundly influenced the development of many different musical genres. Brown moved on a continuum of blues and gospel-based forms and styles to a profoundly "Africanized" approach to music making. Brown performed in concerts, first making his rounds across the Chitlin' Circuit, and then across the country and later around the world, along with appearing in shows on television and in movies. Although he contributed much to the music world through his hitmaking, Brown holds the record as the artist who charted the most singles on the Billboard Hot 100 without ever hitting number one on that chart.

For many years, Brown's touring show was one of the most extravagant productions in American popular music. At the time of Brown's death, his band included three guitarists, two bass guitar players, two drummers, three horns and a percussionist. The bands that he maintained during the late 1960s and 1970s were of comparable size, and the bands also included a three-piece amplified string section that played during ballads. Brown employed between 40 and 50 people for the James Brown Revue, and members of the revue traveled with him in a bus to cities and towns all over the country, performing upwards of 330 shows a year with almost all of the shows as one-nighters. In 1986, he was inducted into the Rock and Roll Hall of Fame and in 1990 into the Songwriters Hall of Fame.

Tony Touch (born Joseph Anthony Hernandez; July 2) is an American hip hop break dancer, rapper, DJ, producer and actor of Puerto Rican descent.

Tony Touch began as a B-boy during the rap music renaissance era of the early 1980s. Heavily influenced by pioneers like Crazy Legs and the Rock Steady Crew, Grandmaster Flash, Red Alert, Little Louie Vega and Jam Master Jay, he quickly shifted his interests towards the turntables. Toca is known for legendary mixtapes like the 50 Mcs parts 1, 2 and 3. Included in this series are some of the hottest artist in the game such as KRS One, Kool G Rap, Big Daddy Kane, Wyclef, M.O.P, Big L, Mos Def and many more all coming together for one collective piece. This along with the countless other mixtapes, Tony became recognized in the streets and by the industry as the real ‘Mixtape King.’