Tomorrow night, One Republic is playing The Trocadero. We've never heard of them, and outside of the song that automatically pops up on their MySpace page, we have no idea what their music sounds like. So why are we previewing their show? Because their opening act is Eric Hutchinson (MySpace) whom we fell in love with when we caught him co-headlining at the World Cafe Live with Philly's own Matt Duke. So much so, in......