Sven Joakim Eriksson Thåström (born 20 March 1957), better known as Thåström, is a Swedish singer and songwriter, mostly known for the bands Ebba Grön and Imperiet. He has moved between a number of genres, from punk to rock, industrial and autobiographical singer-songwriter music.

Source: Wikipedia (https://en.wikipedia.org/wiki/Joakim_Th%C3%A5str%C3%B6m)