R.E.M. was one of the hottest alternative acts of the 80s and 90s. One of their hits, "Losing My Religion" wasn't about religion at all. In this edition of Brent's 'Behind the Song Story', I explain what the song is really about and why lead-singer Michael Stipe was surprised that it became a hit.

R.E.M. was also one of David Letterman's favorite groups. Here's their very first appearance on Dave's show in 1983.