It's common knowledge that Seth Rudetsky approves of performers who can take well-known tunes and make them their own. In his (he co-wrote it with Jack Plotnick and plays disaster expert Dr. Ted Scheider) Off-Broadway show Disaster! A '70s Disaster Movie Musical, Seth encouraged the performers to do just that. Here, cast members Haven Burton, Matt Farcher, Charity Dawson and Saum Eskandani (along with a top secret special guest) perform some of the productions' 1970s hits — with and without their signature riffs included. Read Seth’s weekly column. Visit SethTV.com, Seth’s online home.