- Full Name: Mbaruku Harrison Ngunjiri Maina
- Categories: Musicians
- Gender: Male
- Birth Country: Kenya
- Date of Birth: August 17
Hardstone is a Kenyan musician based in the U.S. His music is a mixture of Ragga, Reggae and Hip-Hop. 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. The album contained two versions of Uhiki his, original and Pinye's remix. The latter version contains samples of Sexual Healing by Marvin Gaye and was an instant hit. He recorded a second album "Ziwe Nkulu", but it was left unreleased as he moved to the United States in 1998. In 2003 he released another album "Hardstory". In 2008, he recorded Stone Republic 12 tracks on Vigintillion Records. On 9th March 2015, he landed a recording deal with Atlantic Records, making him the first East African to sign to the label.