Artist Biography Available in: Gemini is a Swedish pop group consisting of brother and sister (hence the name "Gemini") Karin Glenmark and Anders Glenmark. They released 2 albums: "Gemini" (1985) and "Geminism" (1987) which mostly consisted of material written by Benny Andersson and Björn Ulveaus of ABBA, the first album notoriously including a version of ABBA's unreleased 1982-penned track, 'Just Like That'.