S. A. Rajkumar (born 23 August 1964) is an Indian music composer and lyricist, known for his work primarily in Tamil, Telugu, and Kannada cinema.
Rajkumar's father was a vocalist performing in stage shows conducted by popular music directors such as Ilayaraja, Gangai Amaren, Deva among others.
Rajkumar underwent classical music training under the guidance of Subbaiah Bhagavathar for 3 years.
Come 1987 and director duo Robert–Rajasekar gave him his first breakthrough by signing him as the music composer for their film Chinna Poove Mella Pesu.
His compositions for the films such as Pudhu Vasantham (1990), Shruthi (1990), Poove Unakkaga (1996), Surya Vamsam (1997), Aval Varuvala (1998), Unnidathil Ennai Koduthen (1998), Thulladha Manamum Thullum (1999), Raja (1999), Vaanathaippola (2000), Vasantam (2000) and Priyamaana Thozhi (2003) have all been blockbuster musical hits.