Yeah, it's Adam Duritz-- dude had a crazy year singing on the Dashboard Confessional and Blof albums, not to mention starting up a new indie label. Blof is incredible. The other song that is mind-blowing is their duet of Holiday in Spain with the Counting Crows where they alternate verses and Adam throws some sweet background vocals in over Paskal singing the chorus in Dutch.
This is an incredibly well-done song, and I believe it is a duet including the lead singer of Counting Crows (or someone much like him). It is again proof against the boundaries of language while reinforcing the importance of retaining differences.