In addition to
Sigur Rós, Birgisson has a solo career as 'Jónsi'. He collaborated with his then longtime companion
Alex Somers under the name
Jonsi & Alex and previously fronted for the bands 'Stoned' and 'Bee Spiders'. Although they since split up, Birgisson and Somers continue to collaborate on music, media, and creative projects. He occasionally releases solo material under the alias 'Frakkur'.
