It's a Taylor Swift "love story!" Die hard "swifties" Anthony and Stephanie were stunned as they were selected to go backstage and meet the pop star following her show in Philadelphia. That's when Anthony popped the question. Meanwhile, singer Mariah Carey also helped one of her dancers with a proposal during a show in Las Vegas. InsideEdition.com's Leigh Scheps (http://twitter.com/LeighTVReporter) has more.