Fireflies Owl City "Fireflies" by Owl City. Capo on the 3rd fret. The best chords to this song are, of course, the highest rated one, and I noticed that there weren't any intro tabs including a capo on the 3rd fret to go with them. This way, you can play the intro and then the correct chords. Note: The letters above the tab indicate what chord to play when; don't pause where the lines in there are. It's just in case you might want to do a rhythm guitar/lead guitar thing with someone. (guitaretab.com)