Roots of Guilty Simpson

Erik Vincent Stephens, better known professionally as Apollo Brown, is an American record producer from Detroit, Michigan, United States. He is a member of the hip hop group Ugly Heroes and has released numerous collaborations with the likes of Guilty Simpson, O.C., Ras Kass, Skyzoo and Planet Asia.

Michael Woodrow Jackson, known professionally as Oh No, is an American rapper and record producer who has released several albums on Stones Throw Records. He is half of the hip-hop duo Gangrene along with The Alchemist. He is also half of the hip-hop duo The Professionals with his brother Madlib.

Otis Lee Jackson Jr., known professionally as Madlib, is an American DJ, record producer, and rapper. Critically acclaimed for his eclectic, sample-heavy production style, he is regarded as one of the most influential producers in modern hip-hop. His frequent collaborators include MF Doom, J Dilla, Freddie Gibbs, Talib Kweli, and Erykah Badu.

Nathaniel Thomas Wilson, better known by his stage name Kool G Rap, is an American rapper. He began his career in the mid-1980s as one half of the group Kool G Rap & DJ Polo and as a member of the Juice Crew. He is widely considered to be one of the most influential and skilled MCs of all time, and a pioneer of mafioso rap/street/hardcore content and multisyllabic rhyming. On his album The Giancana Story, he stated that the "G" in his name stands for "Giancana", but on other occasions he has stated that it stands for "Genius".

O'Shea Jackson, known professionally as Ice Cube, is an American rapper, songwriter, actor, and film producer. His efforts on N.W.A's 1989 album Straight Outta Compton contributed to gangsta rap's popularity, and his political rap solo albums AmeriKKKa's Most Wanted (1990), Death Certificate (1991), and The Predator (1992) were all critically and commercially successful. He was inducted into the Rock and Roll Hall of Fame as a member of N.W.A in 2016.