Björn Ulvaeus is a
Swedish musician and composer. After being a member of
ABBA he has, together with
Benny Andersson, created the musicals
Chess[?],
Kristina from Duvemåla[?] (based in the Immigrant novels by Swedish writer
Vilhelm Moberg), and
Mamma Mia (based on existing ABBA songs).
See also: List of Swedes in music