Leslie Tucker, known as Junior Tucker (born 1966, Trenchtown, Kingston, Jamaica), is a Jamaican reggae singer, who started his career in secular music but who now sings Christian music. His hits included "Happy" and his own composition, "Don't Test".
His first hit was "Happy", released when he was aged seven years old, and was a #1 hit single in Jamaica, where he was known as the Jamaican Michael Jackson. He performed the tune at the One Love Peace Concert in 1978. He had further hits with his cover version of "Some Guys Have All The Luck" and, in 1983, recorded the first version of "Mr. Telephone Man", a 1984 Top 20 Billboard hit for New Edition. He then studied audio engineering at the Institute of Audio Research in New York, and following his study began to write his own songs. "Don't Test", one of his first compositions, became an international hit earning him a recording contract with Virgin in 1989. "Don't Test" peaked at #54 in the UK Singles Chart in June 1990. He was released from his Virgin contract in 1991, returning to Jamaica, where he became a dancehall act.