Hardstone (real name Harrison Ngunjiri, born 1977) is a Kenyan musician. His music is a mixture of ragga, reggae and hiphop. He sings in English, Swahili and Kikuyu languages . He is a pioneer urban style artist in Kenya and topped the Kenyan music scene for a while in the late 90's . He emerged in 1997 with popular hit "Uhiki" and an album named "Nuting but de Stone", produced by Tedd Josiah of Sync Sound Studios and released internationally by German-based Kelele Records . Guest artist on the album were Fiona Mungai (of Shadz O Blak) and Eric Wainaina .