Tiruchirapalli Srinivasan Rangarajan, professionally credited by his pseudonym Vaali was an Indian poet who has the record for writing the most songs in Tamil cinema. He is also recognised for a five-decade long association in the Tamil film industry and has written over 15,000 songs. He acted in a number of films, including Sathya, Hey Ram, Paarthale Paravasam and Poikkal Kudhirai. He was honoured by the Government of India with the Padma Shri, India's fourth highest civilian honour in 2007.

Hey Ram is a 2000 Indian epic historical drama film written, directed, and produced by Kamal Haasan, that stars him and Shah Rukh Khan in lead roles. It was simultaneously made in the Tamil and Hindi languages.