Watch: Tom Waits perform 'Chicago' on Letterman

Whether it’s in front of a dive bar crowd, Hollywood A-listers watching the premiere screening to his new movie or, indeed as is the case here, millions of folk across America tuning into one of the country’s biggest late-night talk shows, Tom Waits just never comprises for anybody.

His performance of ‘Chicago’ last night on David Letterman was vintage Waits, all flailing limbs and bourbon-drenched growls. And a little bit of extra info for all you Fact Fans: that’s his son Casey on drums. He looks just as rad as his pops, doesn’t he?

Watch the clip above.