Harun "Aaron" Kimathi Rimbui is a Kenyan pianist, keyboardist, bandleader, producer, festival curator and radio host.

His father would play music ranging 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.

Rimbui's individual expression in music continued to form in his high school years.

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.

[5] Rimbui started his career as music director playing for Eric Wainaina He then recorded his first album Keys Of Life.