Singanalluru Puttaswamaiah Muthuraj (24 April 1929 – 12 April 2006), better known by his stage name Dr. Rajkumar, was an Indian actor, singer and producer who worked in Kannada cinema. Through his over five-decade long career of over 200 films, he was regarded one of the most pivotal and influential figures of the Kannada film industry. His films were praised for acting as a bridge between the popular and art films because of the theme of the story and their treatment. He debuted as a child actor in the 1942 Kannada film Bhakta Prahlada. His first role as an adult came in Sri Srinivasa Kalyana (1952) and as a lead, two years later, in Bedara Kannappa, which gave him stardom. He debuted as a singer with the track Om Namaha Shivaya from the 1956 film Ohileshwara. In 1960, he made his debut a