Stefán Hilmarsson (26-6-1966) is an Icelandic singer whose career started in 1987. From 1988 til 2018 he was the singer of the famous rockband Sálin hans Jóns míns. He represented Iceland in the 1988 Eurovision Song Contest as the half of the duo Beathoven. Apart from Sálin, Stefán released seven solo albums.
Eyjólfur Kristjánsson (17-4-1961) became a professional singer in 1983. Between 1986 and 1990 he was the singer of the band Bítlavinafélagið. Beside that, he released six solo albums.
As a duo, Stefán and Eyfi represented Iceland in the 1991 Eurovision Song Contest. It seemed to be a one time coöperation, but in 2006 they released an album together, followed by a second one in 2011.