FM Belfast formed in late 2005 as a duo with Árni Rúnar Hlöðversson(Plúseinn) and Lóa Hlín Hjálmtýsdóttir. The band was a studio project for some time until the Iceland Airwaves festival 2006 when the band expanded into a full on live act.

The members now vary from 3 to 8 depending on who can make it. The core of the band is made up of Árni Rúnar Hlöðversson. In 2008 the band formed World Champion Records.

Their first full length record "how to make friends" was released in Iceland on World Champion Records in October 2008. It has sold over 4000 copies in Iceland alone. The band plans to release the album in Europe in the summer of 2009 followed by a Europe tour.