Roots of MC Hariel

Kleber Cavalcante Gomes, known professionally as Criolo, is a Brazilian rapper and songwriter who has been nominated for four Latin Grammy Awards. He began his career in 1989 and initially gained recognition in Brazil as the creator of Rinha dos MCs. However, he later achieved worldwide attention for his solo work, particularly the album Nó Na Orelha (2011).

Racionais MC's is a Brazilian hip hop group based in São Paulo. The original lineup formed in 1988 consisted of Mano Brown, Ice Blue, Edi Rock, and DJ KL Jay. Each member hails from the ring of favelas around São Paulo. Their lyrics combine themes of social justice with gangster imagery, a far cry from the idyllic breeziness typically associated with Brazilian rap music, Racionais MC's is often considered the most important Brazilian rap group. Their name recognizes Tim Maia's monumental double album Racional vols. 1 and 2.