Roots of El Da Sensei

Adam Andrzej Ostrowski, better known as O.S.T.R., is a Polish rapper, musician, audio engineer and record producer, famous for his freestyle rap skills, ambitious lyrics and unique beats. He graduated from the Academy of Music in Łódź, violin class. He is one of the few Polish rappers who have received professional musical education. He has collaborated with American rappers such as Evidence, El Da Sensei, Craig G, Keith Murray, Jeru The Damaja, Lil' Dap, Sadat X and Canadian producer Marco Polo. He has also collaborated with many Polish artists, including jazz musicians Michał Urbaniak, AbradAb Hades, SOFA, Fokus, DJ Deszczu Strugi, DonGURALesko, Vienio i Pelson, Fu, Pezet, Sistars and Slums Attack. He is a member of bands such as Tabasko, Skill Mega, Killing Skills, Beat Brothers and musical project POE. He is also a former member of Obóz TA and LWC. In 2013, he shared the position of art director of Męskie Granie festival with alternative rock vocalist Kasia Nosowska.

Jason Daniel Rawls, known professionally as J. Rawls, is an American hip-hop musician, producer, DJ, educator, and speaker based in Columbus, Ohio. He emerged in the late 1990s underground hip-hop scene, contributing to projects such as Black Star's's debut album, Mos Def & Talib Kweli Are Black Stars. He is the producer of the group Lone Catalysts with rapper J Sands. Rawls has collaborated with various artists, including Grand Agent. Rawls runs a Columbus-based production company and record label named Polar Entertainment, and performs as a DJ.

Noah Weston, better known as Soul Khan is an American rapper and songwriter. Born in West Hollywood and raised in Woodland Hills, California. He currently resides in Brooklyn, New York City. After a short career in battle rap that started in late 2008, in which he appeared in American circuits such as Grindtime and Smack/URL, as well as outside the United States, notably in Canada (KOTD) and United Kingdom, he retired from the scene to focus his attention on his musical career in early 2010. He is a member of the Brown Bag AllStars, a collective of emcees and producers from the Brooklyn area.

Derek W. Murphy, better known as Sadat X, is an American rapper, best known as a member of alternative hip-hop group Brand Nubian. Originally known as Derek X, Sadat takes his name from former Egyptian president Anwar Sadat.