Train’s Meet Virginia – currently on infinite headphone rotation.
They’re compared a lot to REM, but to me they’re much more Spin Doctor-ish. It’s rare when REM is not depressing (not necessarily a bad thing) and when they’re fun it’s with this inside-joke thing happening (e.g. Shiny Happy People). The Spin Doctors are saying “let’s tell the song version of a joke and get the listener to smile and laugh with each listen.”