Roots of HO99O9

Earl Simmons, known professionally as DMX, was an American rapper, songwriter, and actor. His accolades included an American Music Award, a Billboard Music Award, and six Grammy Award nominations. Regarded as an influential figure in the late 1990s and early 2000s and one of the greats of hip-hop, his music is characterized by his "aggressive" rapping style, with lyrical content varying from hardcore themes to personal themes such as trauma or childhood abuse.

Theophilus Musa London is an American rapper, singer, and record producer. He is best known for his guest appearance alongside Allan Kingdom and Paul McCartney on Kanye West's 2015 single "All Day", which peaked at number 15 on the Billboard Hot 100 and received two Grammy Award nominations. London has also worked on several iterations of West's eleventh album Donda 2 (2022), as well as several of his unreleased projects.

Injury Reserve was an American hip-hop group founded in Tempe, Arizona, in 2012. The group consisted of rappers Ritchie with a T and Stepa J. Groggs, alongside producer Parker Corey.