Thế Sơn is a Vietnamese language

Vietnamese language

Vietnamese is the national and official language of Vietnam. It is the mother tongue of 86% of Vietnam's population, and of about three million overseas Vietnamese. It is also spoken as a second language by many ethnic minorities of Vietnam...

 pop singer from southern Vietnam, and is a long-time member of the long running Vietnamese diaspora variety show Paris by Night

Paris by Night

Paris By Night is a popular Vietnamese language musical variety show, produced by an Overseas Vietnamese company Thúy Nga and hosted by Nguyễn Ngọc Ngạn and Nguyễn Cao Kỳ Duyên, featuring musical performances by modern pop stars, traditional folk songs, one-act plays, and sketch comedy...

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The Son's father was an officer in the Army of the Republic of Vietnam

Army of the Republic of Vietnam

The Army of the Republic of Viet Nam , sometimes parsimoniously referred to as the South Vietnamese Army , was the land-based military forces of the Republic of Vietnam , which existed from October 26, 1955 until the fall of Saigon on April 30, 1975...

, and was imprisoned by the communists after the fall of Saigon

Fall of Saigon

The Fall of Saigon was the capture of Saigon, the capital of South Vietnam, by the People's Army of Vietnam and the National Liberation Front on April 30, 1975...

. The Son took up singing to support his family and formed a duet with Thuy Tien

Thuy Tien

Thủy Tiên is a Vietnamese language pop singer from southern Vietnam. She appears on the long running Vietnamese diaspora variety show Paris By Night. Before emigrating from Vietnam she used to form a popular duet with fellow Paris By Night singer Thế Sơn.- References :...

. He completed a university degree in music and moved to the United States. He is known for singing songs from the 1940s to the 1970s.