Overview

• David Letterman, the original host of 'The Late Show', is set to return as a guest on the show on November 20, as announced by current host Stephen Colbert.
• Letterman has not appeared on 'The Late Show' since he stepped down as host in 2015, making this his first return to the Ed Sullivan Theater in over eight years.
• Since leaving 'The Late Show', Letterman has hosted a Netflix series 'My Next Guest Needs No Introduction', where he interviews high-profile celebrities.
• Letterman's return to 'The Late Show' is speculated to be related to his Netflix series, as it has been about a year since the last episode was released.
• Stephen Colbert and David Letterman last shared a stage at the Ed Sullivan Theater in 2015, when Colbert was announced as Letterman's replacement.