Prior to their work as Gemini, Karin and Anders formed half of the group Glenmarks (with their uncle Bruno Glenmark and aunt Ann-Louise Hanson) and also released two singles together, with 1984's "Kall som is" ("Cold As Ice") being placed 4th at Melodifestivalen (the Swedish heats for the Eurovision Song Contest).
The winner of Melodifestivalen, Herreys, went on to win the Eurovision Song Contest (with "Diggi-Loo Diggi-Ley") and recorded a version of "Kall som is" for their album.
A Spanish cover version of Gemini's "Slowly" called "Muriendo Lento" was recorded by the Mexican group Timbiriche.
Although not a Gemini recording per se, the 1994 release of Chess In Concert (by Andersson, Ulvaeus and Tim Rice) showcased their combined voices and distinctive harmonies.
In 2006 the duo signed a distribution deal with Sony Music Sweden, resulting in the album, Vår jul (Our Christmas).