After 33 years in late night and nearly 20,000 guests, David Letterman signed off the Late Show on May 20, 2015.
Check out the pics from Letterman's final Late Show!
9:10 PM PDT, May 20, 2015
After 33 years in late night and nearly 20,000 guests, David Letterman signed off the Late Show on May 20, 2015.
Check out the pics from Letterman's final Late Show!