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VIDEO: John Hodgman promotes new book 'That Is All' with celeb cameos galore

John Hodgman, he of "The Daily Show" correspondent appearances and the PC in the long-running Mac vs. PC ad campaign, has a new book coming soon to bookstores near you (or, more likely, Amazon and e-readers) entitled "That Is All." He's promoting it in a new Funny Or Die video with music by masters of quirky They Might Be Giants.

The video features a wide variety of celebrities and assorted funny people, including Jon Hamm, Paul Rudd, Brooke Shields, rapper Nas, Saturday Night Live's Fred Armisen, 30 Rock's Jack McBrayer and fellow Daily Show correspondents Samantha Bee, Jason Jones and Kristen Schaal. It even features an appearance by the Mac from those Mac/PC ads, Justin Long. Craziest cameo goes to classic talk show host Dick Cavett.

Hodgman appears at Los Angeles's Largo at the Coronet to promote his new book on Friday, Nov. 4 with comedian Paul F. Tompkins, John Roderick from the Long Winters and Rich Sommer from "Mad Men." "That Is All," the last in his "trilogy of complete world knowledge," comes out Nov. 1. (Proof that Hodgman is a hipster: His official site is a Tumblr.)