Harun Aaron Kimathi Rimbui is a Kenyan pianist, keyboardist, bandleader, producer, festival curator and radio host. He is regarded as one of East Africa's finest pianists.
Aaron was born in Nairobi, Kenya. Rimbui's ear for music was displayed while still a toddler. His father would play everything from Stevie Wonder records to Henry Mancini and take him to local restaurants where he heard the music of groups like Les Wanyika, Maroon Commandos and Samba Mapangala. This had a significant influence on how he developed his sound in later years. Rimbui's individual expression in music continued to form in his high school years. It is at this time that he picked up the piano. Rimbui began to gravitate toward jazz as he listened to the music of David Sanborn, Joe Sample, Yellowjackets and Fourplay and later, Herbie Hancock and George Duke. Rimbui served as head the Tusker Project Fame band.