Biography
Björn Ulvaeus is a Swedish musician, singer and songwriter. He is best known as a member of the pop group ABBA and as co-composer, with Benny Andersson, of the stage musical Mamma Mia! and its film adaptations.
Ulvaeus and Andersson served as executive producers on the 2008 film Mamma Mia!, for which they also oversaw the soundtrack drawn from ABBA songs. He appears uncredited as a Greek God in the film and as a University Professor in the 2018 sequel Mamma Mia! Here We Go Again.
