Bjorn Ulvaeus is a Swedish musician, songwriter, and producer best known as a member of
ABBA, where he performed as a guitarist, vocalist, and key songwriter alongside
Benny Andersson, with whom he formed a long-standing creative partnership that began in the 1960s after meeting during their respective band careers with the
Hootenanny Singers and the
The Hep Stars. Raised in Vastervik, he grew up in a musically inclined family and later trained in music while developing early influences from blues artists, before gaining recognition in Scandinavia with the Hootenanny Singers. His collaboration with Andersson led to early songwriting successes in Sweden, eventually evolving into ABBA, where he contributed to numerous songs as both performer and composer during the group's international success. After ABBA's hiatus in 1982, he continued working with Andersson on stage productions, co-creating the musicals "Chess," "Kristina fran Duvemala," and "Mamma Mia!," the latter also adapted into successful films which he co-produced. He has remained active in music and related projects, including contributing to the ABBA Voyage project and new recordings released in 2021, as well as collaborating on musical adaptations and industry initiatives. Alongside his artistic work, he has been involved in organizations supporting creators' rights, co-founding the Music Rights Awareness Foundation and participating in the WIPO for Creators initiative, while also serving as president of CISAC, reflecting his engagement with the business and legal aspects of the music industry.