David Letterman Crashes 'The Tonight Show,' Refuses to Read Fallon's Jokes | Video
John Oliver wasn't the only late night icon to crash this week. "The Tonight Show" started Monday off with a surprise ...
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David Letterman makes surprise appearance on ‘Tonight Show’ for 1st time in 3 decades
On Feb. 10, David Letterman stopped by “The Tonight Show Starring Jimmy Fallon ... before Fallon asked if he wanted to tell some jokes. This spurred a man with a cue card to come out so ...