'Up in Smoke' with Cheech & Chong

Cannabis comedians Cheech and Chong are back -- and they're launching their first comedy tour in 25 years! The marijuana-happy duo sat down with "Extra" to discuss their tour -- and set the record straight on rumors they used to party with Arnold Schwarzenegger! Plus, the dope on what was really stuffed into all of the joints they smoked in their movies.

The "Cheech and Chong Light Up America" tour blazes into town September 12.