Issah Mmari (May 20, 1981 - March 16, 2003) better known by his stage name E-Sir was a Kenyan hip hop artist signed to the Ogopa Deejays label. He was famous for his deft lyrical ability and command of the Swahili language. Thephenomenal popularity of his music disproved the myth that Kenyanmusic could never compete with imported pop.