Jon Stewart returns to the Daily Show with help from Mr. Met

Jon Stewart took a summer hiatus from The Daily Show to direct a film, leaving the Comedy Central staple in John Oliver's capable hands.

Stewart returned on Tuesday, but Oliver and Co. needed help from a few friends to reacclimate him to the set - friends who included the one and only Mr. Met.

Mrs. Met wasn't there, presumably tied up at the US Open, but you can see her husband's cameo right here.