Cornelis Vreeswijk. He emigrated to Sweden with his parents in 1949 at the age of twelve, and taught himself to sing and play guitar in the fifties. His first album in 1964 was a hit and created a large following among the emerging radical student generation. Vreeswijk was a controversial figure in the 60'2 and early 70's and was disapproved by many for his rude language and persistent interest in people like prostitutes and criminals.
Here's the pair: