BY IAN HRABE
It's funny what a hit can do. Two years ago, I literally could not walk down Mass Street without hearing Peter, Bjorn and John's whistle-wielding surprise hit "Young Folks" blasting out of some boutique or pizza place. Suddenly, the song was everywhere. From clothing commercials, to sports video games, to Grey's Anatomy, to a sample in a Kanye West track. Rather than recreate the success of "Young Folks," with this year's Living Thing, the trio abandoned the anthemic sing-a-long po
