Experts tell ABC News’ Buck Wolf Britney Spears Election Day surprise – coming one day after she showed off her new, slimmed-down look on late-night TV – was a masterful public relations move to launch her post-Kevin Federline career. “You’ve got to love the timing,” says Jill Dobson, news editor at Star magazine. “The Letterman appearance was a last-minute thing. She obviously didn’t talk about it on the show. But she wasn’t wearing a wedding ring. Then, a day later, she drops the bomb – during a national election – when everybody is watching the news, and journalists work overtime.” Read more.