Nine guys in Spider-Man outfits, not to mention Dracula, Superman, and a cowboy cram themselves into a Subway restaurant; Tony Orlando dresses down Dave even though he interrupted him, then leaps into a chorus of ""Knock Three Times""; when one of Lee Marek's kid scientists starts a very flammable demonstration, Dave demands that the band and everyone else onstage take for cover behind his desk.
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Ready to Watch Late Show with David Letterman, Season 9, Episode 151?