At the beginning of her career, in 1958, she was working as a warden at Ulleråkers sjukhus, a mental institution and hospital, where she used to play her guitar during breaks to entertain her colleagues.

[1] Her friends entered her in a talent competition called Ungdom med ton (English: Youth with tones).

[1] After winning the song competition, Jacobsson travelled to Stockholm with her father, hoping to perform at the popular Nalens dance hall.

[6] In 1972, she recorded an album called Rock Olga Today with three members of the fledgling, soon-to-be-named pop group ABBA: Benny Andersson on piano, Agnetha Fältskog and Anni-Frid Lyngstad as backing vocals.

[1] Rock-Olga developed a fever after performing at Gröna Lund on 8 May 2010, and was subsequently diagnosed with blood poisoning from a cut on her toe.