January Jones Pulled a Great Prank

After some truck talk, January tells Jimmy about a prank she just pulled on an old flame who she grew up with in South Dakota. Subscribe NOW to The Tonight Show Starring Jimmy Fallon: Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35/10:35c Get more Jimmy Fallon: Follow Jimmy: Like Jimmy: Get more The Tonight Show Starring Jimmy Fallon: Follow The Tonight Show: http://Twitter.