Mauro (Italy) and Onyee (Hong Kong) met in London when they worked as ushers in a cinema. They created many tunes of rock'n'roll & disco blues during their breaks, and began to play shows as a duo. Later they formed SUNNY DAY SETS FIRE, joined by their multi-instrumentalist friend Max (italy) and they finally started recording their first DEMO as a trio on December 2004. The first single, Brainless, was released in February 2006 on Brikabrak Rec. and the band decided to include a new member one month later.
With Ed (UK) on bass SDSF, they were officially a quartet. They've been described as "an upbeat Postal Service with added trumpets and drums with the volume turned high" (XFM). In 2007, they added a new member on Drums - Matthew from Canada taking them to quintet status.