Radha and Jayalakshmi, popularly known as Radha Jayalakshmi, were an Indian Carnatic music vocalist duo as well as playback singers in films in the 1940s and 1950s. They later became teachers and trained notable Carnatic music singers. Jayalakshmi was the playback singer of the duo, but was credited as Radha Jayalakshmi in the cine field. Radha was her cousin and singing partner on stage performances. They were early vocalists in the duo singing trend in Carnatic music which started in the 1950s and includes performers like Bombay Sisters and Soolamangalam Sisters. In recent times, the trend has been continued by popular Carnatic music singers like Priya Sisters, their disciples, Ranjani Gayatri, Akkarai sisters, and others.

Gudalur Narayanaswamy Balasubramaniam, popularly known as GNB, was an Indian Carnatic singer. He innovated the art through emphasis on laya control and reducing the gamakas which eventually made Carnatic music appeal to the lay and the learned alike. He was also a Tamil film actor. Ariyakudi Iyengar inspired him.