The stars joined guest host Ferrell for a rendition of Billy Joel's "Goodnight Saigon" during a comedy sketch about a man scarred by a vacation to Vietnam.
The skit served as the climax of the season finale.
Green Day was the show's musical guests and Hanks made an earlier appearance on the finale (video clip below), portraying himself as a contestant on a celebrity edition of game show Jeopardy -- alongside Darrell Hammond as Sean Connery and Norm MacDonald as Burt Reynolds.
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