Chellapilla Satyanarayana Sastry (1933 - 12 January 1989), known mononymously as Satyam, was an Indian music composer. He was popular in the Telugu and Kannada film industries in the 1960s to 1980s. Sathyam is best remembered as "Andhra R. D. Burman". He also composed a handful of Bengali, Bhojpuri, and Hindi films. Some of his memorable hit songs in Telugu are Ye Divilo Virisina Parijatamo, Gunna Mamidi Komma Meeda, O Bangaru Rangula Chilaka, Kalise Kalla Lona, Tholi Valape Teeyanidi, Aaraneekuma Ee Deepam Karthika Deepam, Gaali Vanalo Vana Neetilo.