I covered a Fleet Foxes song for a girl, once. Played and sang it in the back of my truck under a Texas starry night. That was before I was cool, of course. Can't even remember the song's title, but I remember capo'ing like the 5th or 6th fret.
Edit: yeah, and it was in some stupid tuning that only the most artisan guitarists use, I'm sure. I'll look it up if anyone cares