'Daily Show' host Jon Stewart announced Thursday that he'll lead a rally on Washington that aims to encourage angry citizens on both sides of the aisle to take it down a notch, or in his words, "stop shouting, throwing and drawing Hitler mustaches on people other than Hitler."

The event has been dubbed the "Rally to Restore Sanity" and will be held on the National Mall on Oct. 30. "It's real," he told his maybe-thinking-he-was-joking audience. "We are gonna do this." Watch Stewart's big announcement: