Vairamuthu Ramasamy is an Indian lyricist, poet, and novelist working in the Tamil film industry. He is a prominent figure in the Tamil literary world. A master's graduate from the Pachaiyappa's College in Chennai, he first worked as a translator, while also being a published poet. He entered the Tamil film industry in the year 1980, with the film Nizhalgal, an Ilaiyaraaja musical, directed by Bharathiraja. During the course of his 40-year film career, he has written over 7,500 songs and poems which have won him seven National Awards, the most for any Indian lyricist. He has also been honored with a Padma Shri, a Padma Bhushan and a Sahitya Akademi Award, for his abundant literary output.

Madhan Karky Vairamuthu is an Indian lyricist, screenwriter, research associate, software engineer, and entrepreneur. A holder of a doctorate in computer science from the University of Queensland, Karky began his professional career as an assistant professor at the College of Engineering, Guindy, and soon after ventured into the Tamil film industry, working as a lyricist and dialogue writer. He resigned from his teaching profession in early 2013 and began working full-time in the film industry, while also launching the Karky Research Foundation (KaReFo), an educational research organization which primarily focuses on language computing and language literacy. He also founded the Mellinam Education, which develops educational games and story books designed to propagate learning among children, and DooPaaDoo, an online music platform which promotes independent music and serves a distributor for film soundtracks.