This live performance is of a song that appeared on R.E.M.'s Dead Letter Office album, which was full of rarities and B-sides. Dead Letter Office is my favorite R.E.M. album. most likely because it's full of odd covers, like this song. Crazy was originally performed by a band called Pylon, who were contemporaries of R.E.M. in the Athens, GA, music scene. This is a reasonably faithful cover of the song.