According to Consequence of Sound, Tom Waits will be performing on CBS's Late Show hosted by David Letterman.
From Consequence of Sound:
David Letterman has just 28 episodes left before he signs off as host of CBS’s Late Show. As you might expect, a number of entertainment’s biggest names — from actors, to comedians, to musicians — will be appearing on the show in the coming weeks to bid Letterman adieu.Cinemablend, Deadline, Pitchfork and Entertainment Weekly also carry the news Waits will be appearing on the Late Show (they do not use the word 'performing').
On a musical front, perhaps the biggest highlight is Tom Waits. The reclusive musician has been a frequent guest of the Late Show over the years, most recently appearing in 2012 in support of his last album Bad As Me.
It’s unclear if Waits will be performing on the show, but if he does, it’ll mark his first time on-stage in nearly two years. Update: We’ve confirmed Waits will be performing.