Samuelsons
Samuelsons was a country and gospel group from Sweden, between the 1960s and 80's. It consisted of the brothers Rolf (1939-1981), Kjell (born 1942), Olle (born 1950) and Jard Samuelson (born 1952).
In December 1966 the first album was released in the USA, and was awarded three stars by Billboard. They soon became popular throughout Europe, Canada and the USA.
References
Swedish musical groups
1960s music groups