Björn Ulvaeus & Benny Andersson

Björn Ulvaeus & Benny Andersson are the BB in ABBA, one-time husbands of Agnetha Fältskog and Anni-Frid Lyngstad respectively. Björn started his career in Swedish folk group Hootenanny Singers, and Benny in the beat group . They wrote their first song together in June 1966, "Isn't It Easy To Say", which was recorded by the Hep Stars. Their first and only album as a duo was released in 1970, and this was the first album to feature both Björn, Benny and their partners.