Edmonton is getting ready to host another round of world-class comedians this summer. The Great Outdoors Comedy Festival returns July 18.Headliners include John Mulaney and Theo Von, as well as Canadian icons, Martin Short and the Trailer Park Boys. "Donovan the Park Ranger," who will be on the scene greeting guests as they arrive and providing some laughs along the way, joined Global News Morning Edmonton to chat about the festival.