Between 1969 and 1972, she was a member in the popular group Family Four, which represented Sweden at the Eurovision Song Contest in 1971 and 1972. She started her solo career in 1974. She has during the years released 13 own-written records and 2 jazz albums and has received numerous awards.
In 1994 she again represented Sweden at the Eurovision, this time with Roger Pontare, setting a record as the singer who has represented Sweden at the ESC the most times.
This was equalled by Carola Häggkvist in 2006. Marie has performed at the Roskilde Festival four times.