Leon James is a film composer and singer from India. As a result of his father Noel James's involvement in the industry as the manager of A. R. Rahman, he became interested in music and started piano lessons at the age of three. He performed alongside Anirudh Ravichander in a school band called Zinx. Leon served as a keyboardist for stage shows and film albums before making his debut as a composer.
Leon James made a breakthrough in the Tamil film industry after his work was spotted by Raghava Lawrence, who was working on his horror comedy film Kanchana 2 (2015). He was a part of Project Yuj, a 'neo-Carnatic funk' band alongside Aalap Raju, Prakash Hariharan and Jeoraj George and the team released an independent album in 2014. The successful nature of his work in his first album prompted producer Elred Kumar to sign him up to work on the whole album for the political-thriller, Ko 2 (2015). Leon James also chose to introduce Harish Sivaramakrishnan from the Bangalore-based rock band Agam and London-based singer Inno Genga, for their first respective songs in the Tamil film industry.