Over the weekend, Steve Martin and Martin Short invited recently retired David Letterman onstage at their San Antonio show to rattle through his patented Late Show Top Ten. The topic, was of course "Interesting facts about Donald Trump"... You see, Letterman was enjoying his free time, until Trump announced he was running for president... To quote the veteran TV presenter: "I have made the biggest mistake of my life."

In case you're wondering just how well Steve and David know each other; they "met at a Scientology Mixer" back in the day. Oh, and if you're interested in what Paul Schaffer's been up to since Letterman retired, he's a "Maitre D on a space ship."