Simbu started acting at the age of three. He started his career by appearing in his father, actor-producer-singer-director T Rajendar’s film, Uravai Kaatha Kili in 1984. but it was in 1987, with Oru Thayin Sabhatham, that his talent caught the audiences' attention. Simbu is an actor, a singer, a producer and the proud winner of many awards for his acting. He also stands out as one of those actors from the Tamil film industry who calls a spade, a spade. He is also known as most controversial star of Tamil cinema.