VIDEO : Jon Stewart Makes Surprise Appearance on 'Jimmy Kimmel Live!'

Jon steward made a surprse appearance on Jimmy Kimmel live. He was joined by a breakdancing crew and they were promoting an upcoming charity event 'Night of Too Many Stars,' which airs Nov. 18 on HBO. Stewart will host the event that will feature a mix of sketches, short films and stand-up performances by fellow comedians and late-night hosts. The goal of thevent is to raise money to support autism schools, programs and services.