From Philadelphia, Pennsylvania

From last.fm:

A Sunny Day in Glasgow began as a collaboration between friends Ben Daniels and Ever Nalens, both of whom had recently returned to Philadelphia after several years in the UK. The band name came from Nalens, who had been living in Glasgow, and Daniels kept it after Nalens left the project. In 2006, Daniels asked his twin sisters, Robin and Lauren, to start singing on the songs they had been working on. Read more about A Sunny Day in Glasgow on Last.fm.