Dian Pramana Poetra 2 April 1961 – 27 December 2018 Was An Indonesian Jazz Musician. His Musical Talent Flows From His Father Who Is Also A Jazz Musician. At The 1980 Youth Song Creation Competition Dian Won Third Place With The Song "Pengabdian". Apart From Being A Singer And Songwriter He Also Had A Duet With Deddy Dhukun Who Was Famous In A Group Called 2D. Among His Songs That Became Popular And Exploded In The Market Was "Keraguan " Which Was Composed By 2D Himself. Previously He Formed The K3S Trio Group Of 3 Voices With Deddy Dhukun And Bagoes A. Ariyanto. This Trio Also Had Time To Release Several Albums That Were Quite Well Known In Their Time.