Viswanathan-Ramamurthi was a pioneering musical duo comprising M.S. Viswanathan and T.K. Ramamoorthy, born in 1925 and 1929 respectively, in Cheranmahadevi and Thiruvaiyaru, India. Their prolific partnership, which began in the 1950s, defined South Indian film music for decades, creating iconic compositions and achieving immense popularity. Both artists were married, and M.S. Viswanathan had children, while details about T.K. Ramamoorthy's children are less commonly publicized.