Claes Gösta Janson, born on July 30, 1947, in Nyköping, Sweden, is a Swedish jazz and blues singer known for his interpretations of ballads by Swedish poets. During his school years in Sundsvall, Janson toured with the Canyon Group, which had several hits between 1963 and 1965. After graduating and completing military service, he co-founded the blues band Good Morning Blues in 1967. Janson's solo career began in 1989 with the release of his debut album Frestelser. Notable albums include Cornelis svenska bilder (1993), Samlad (1996), and Ångbåtsblues (2001). He has worked with numerous big bands, including the Sandvik Big Band.
