Silambarasan Tesingu Rajendar, frequently credited as Silambarasan or Simbu or STR,[1] is an Indian film actor, director and playback singer of the Tamil Film Industry. He began his career by playing roles as a child artist in films directed by his father T. Rajendar,[2] before his first lead role in Kadhal Azhivathillai (2002), under his father's direction and produced by his mother Usha Rajendar.