Swedish singer and songwriter, best known from ABBA, born on April 5th 1950, Jönköping, Sweden. Daughter of Ingvar Fältskog.

Fältskog was inducted into the Rock and Roll Hall of Fame, as a member of ABBA, in 2010.

Fältskog released her first single in 1967, followed by various hit singles and four albums, in the period before ABBA. In 1968 Fältskog released several singles in German, many of which were written and/or arranged by Dieter Zimmermann, to whom Fältskog was also briefly engaged. In 1971, Fältskog married Björn Ulvaeus.

Ulvaeus produced most of her 70s solo material. From their marriage came daughter Linda Ulvaeus and son Peter Christian Ulvaeus. The couple separated in 1978.

Fältskog became one of the four members of the pop group ABBA in 1972. Although Fältskog had penned a great deal of her solo material, she only contributed to one ABBA song, "Disillusion" from 1973. Fältskog's performance of her "I'm Still Alive" in 1979-80 ABBA concerts wasn't officially released until 2014. During her time with ABBA she released the "" album, the compilation ""; and a Christmas album with daughter Linda.

In 1982 Fältskog resumed her solo career, in English, releasing another string of successful singles and three albums. She also released an album of childrens' songs in 1987, with son Christian. After a hiatus of almost two decades, Fältskog released the "" album in 2004, followed by "" in 2013.