Yassir Naji l’ma3rof b “Under-Man” tzad f’Casablanca nhar 14 Mars 1989, w bda f’rap solo f’dik l’w9ita dial 2002-2003.

Howa mo2assiss dial bzaf dl’fra9é, lbidaya l’faniya dialou kanete f’2007 bach kharraj awal projet dialo li kan 3ibara 3la maxi li smiytou Edaya3.

F’2011 l’fennane dialna li mkharraj jouj albumate (Bine el7olm wel7a9i9a & Mrayti) wssale l’11 sana dial rap o li tawssaf fiha b’style dialou li hwa Underground o Hardcore.

Under-Man, had rappeur l’9asse7 3raf kifach idir blassto meziane fl’wassate l’fanni. 9arrar yakhraj album talete Cicatrice li natjato AK47-Production, o li fih mokhtalaf l’mawadi3 l’7assassa o l’wa3iya.