Vika and Linda, also known as Vika and Linda Bull, are an Australian vocal duo consisting of Vika Susan Bull and her younger sister, Linda Rose Bull. They came to prominence after singing backing vocals in Joe Camilleri's band The Black Sorrows from 1988. They left that group early in 1994 to start their duo with a self-titled album appearing in June that year. The duo scored their first number 1 album in 2020, with their retrospective 'Akilotoa: Anthology (1994-2006).

Joseph Vincent Camilleri, aka Jo Jo Zep, is a Maltese Australian singer-songwriter and musician. Camilleri has recorded as a solo artist and as a member of Jo Jo Zep & The Falcons and The Black Sorrows. Jo Jo Zep & The Falcons' highest-charting single was "Hit & Run" from June 1979, which peaked at #12; Jo Jo Zep's "Taxi Mary" peaked at No. 11 in September 1982; and The Black Sorrows top single, "Chained to the Wheel", peaked at No. 9 in March 1989.