If you're a fan of Disney's DuckTales but couldn't make it to the San Diego Comic-Con panel today, we've got you covered. We're pleased to bring you an exclusive video of Scrooge's nemesis, the one and only Flintheart Glomgold, taking over theme song duties and opening animation credits. The result is ... well it's something! The new take on the DuckTales theme song comes courtesy of Keith Ferguson, whose cranky and cantankerous character takes over the beloved and iconic theme song with his own unique rendition. Written by Mark Mueller, Francisco Angones and …