Arunraja Kamaraj is an Indian singer, lyricist, actor and director in Tamil language films. He has acted in films such as Jigarthanda, Raja Rani, and Maan Karate. He wrote and sung the song "Ding Dong" for the movie Jigarthanda, "Neruppu Da" for Rajinikanth's film Kabali, and the title song for Trisha Illana Nayanthara.
Kamaraj was married to Sindhuja, who died of COVID-19 in 2021. They had two daughters together. Kamaraj remarried in late 2022.