The bow tie isn't new to the fashion scene. In fact, it's a seasoned veteran, but now that men, women and Ryan Gosling are sporting them with renewed gusto, you're probably wondering what this bow tie trend is all about. We've gathered some celebs and their bow ties along with some expert advice on how to wear them from David Hart, the founder and designer behind David Hart & Co., a hand-tailored tie company in New York City that sells at Bergdorf Goodman, Saks Fifth Avenue and Fred Segal, among others. We also chatted with "Elle" correspondent, Fabiola Beracasa, for a little feminine insight into this oh-so-sartorial staple.