Late Show with David Letterman

Season 12, Episode 14

Episode Title: Ray Romano, Avril Lavigne

Air Date: 2004-09-09

Overview:

Biff spends the day at New York-Presbyterian Hospital with Dr. Lou Arrone; an educational segment with Alan and an animated rodent goes awry; Ray Romano talks about the final season of ""Everybody Loves Raymond;"" Avril Lavigne performs ""My Happy Ending.""