Sylvester Sim was one of the contestents in Singapore Idol's first season. He competed against Taufik Batisah and became the first runner-up. He used to be in a Japan rock band called L'zefier. He was also known as Sly.
Additionally, he was involved in a local drama show; Shooting Stars. He released his first album, Take Flight, in 2005.
Recently, Sylvester Sim tied the knot with a fellow singer, Sisy Wang.