Watch Dick Van Dyke Perform "Chitty Chitty Bang Bang" at D23 Expo (Video)
Dick Van Dyke, who originated the role of Caractacus Potts in "Chitty Chitty Bang Bang," performed the movie's title tune at the D23 Expo Aug. 16. Van Dyke was joined by The Vantastix, an a cappella group started by Van Dyke and Mike Mendyke.