Hip hop is a form of musical expression and artistic subculture that originated in African-American and Hispanic-American communities during the 1970s in New York City, specifically within the Bronx. The term often refers to hip hop music, which consists of poetry that is spoken - rather than sung - over either original or sampled instrumental recordings mixed with new original sounds from drum machines, and/or other instruments. However, the culture has expanded far beyond its original roots, and now is considered a worldwide subculture comprising rapping, DJing, hip hop dance, and graffiti art - known collectively as "Four Pillars of Hip Hop".

The block parties of DJ Kool Herc at 1520 Sedgwick Avenue, where Herc would mix samples of existing records with his own shouts to the crowd and dancers, are generally considered the birthplace of hip hop. Kool Herc is credited as the 'father' of the art form. DJ Afrika Bambaataa of the hip-hop collective Zulu Nation outlined the four pillars of hip hop culture: MCing, DJing, B-boying and graffiti writing. Since its emergence in the South Bronx, hip hop culture has spread to both urban and suburban communities throughout the world.Hip hop music first emerged with Kool Herc and contemporary disc jockeys and imitators creating rhythmic beats by looping breaks (small portions of songs emphasizing a percussive pattern) on two turntables, more commonly referred to as sampling. This was later accompanied by "rap", a rhythmic style of chanting or poetry presented in 16 bar measures or time frames, and beatboxing, a vocal technique mainly used to imitate percussive elements of the music and various technical effects of hip hop DJ's. An original form of dancing and particular styles of dress arose among fans of this new music. These elements experienced considerable refinement and development over the course of the history of the culture.

Lawrence Krisna Parker (born August 20, 1965), better known by his stage names KRS-One (an acronym for Knowledge Reigns Supreme Over Nearly Everyone), and Teacha, is an American rapper. At the 2008 BET Awards, KRS-One was the recipient of the Lifetime Achievement Award for all his work and effort towards the Stop the Violence Movement as well as the overall pioneering of hip hop music and culture.

Lawrence Parker was born in Flatbush, Brooklyn, New York during the summer of 1965. Parker left home at 16 to become an MC, coming to live at a homeless shelter in the South Bronx where he was dubbed Krishna by residents because of his interest in the Hare Krishna spirituality of some of the antipoverty workers. By the time he met youth counselor Scott Sterling, he was also writing graffiti as KRS-One (Knowledge Reigns Supreme Over Nearly Everyone). Together he and Sterling, a.k.a. DJ Scott La Rock eventually created Boogie Down Productions, releasing their debut album, Criminal Minded, in 1987. KRS-One has been a vegetarian since his youth.

Talib Kweli Greene (October 3, 1975), better known as Talib Kweli, is an American rapper. Kweli hails from Brooklyn, New York. His first name in Arabic means "student" or "seeker" (طالب); his middle name in Swahili means "true". Kweli first gained recognition through Black Star, a collaboration with fellow MC Mos Def.

Born in Brooklyn, New York, Kweli grew up in a highly educated household in Park Slope. His mother, Brenda Greene, is an English professor at Medgar Evers College of the City University of New York and his father an administrator at Adelphi University. His younger brother, Jamal Greene, is a professor of Constitutional Law at Columbia Law School, and former clerk to Justice John Paul Stevens on the Supreme Court. As a youth, he was drawn to Afrocentric rappers, such as De La Soul and other members of the Native Tongues Posse whom he had met in high school. Talib Kweli was a student at Cheshire Academy, a boarding school in Connecticut. He was also a student at Brooklyn Technical High School, before being academically dismissed. He later studied experimental theater at New York University.