Jon Stewart makes another surprise appearance on Jimmy Kimmel Live!, this time for a rap battle

The former Daily Show host, who “crashed” Kimmel’s show in July, “crashed” it again Friday to plug his upcoming Night of Too Many Stars on HBO. To help raise money for autism programs, one lucky person will get to have an “uncomfortable dinner” with Kimmel and Matt Damon. Kimmel and Stewart have been longtime friends, having shared the same agent for decades.

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