Ticketed - Keep it Clean is a star-studded evening of comedy featuring special performances by Martin Short, Ray Romano, Sarah Silverman, Kevin Nealon, Tig Notaro, Robert Klein and more at the Avalon Hollywood in Los Angeles to benefit Waterkeeper Alliance. In addition to live stand up and sketch comedy acts, “Keep it Clean” will feature a keynote address by Robert F. Kennedy, Jr., president of Waterkeeper Alliance.