Las Vegas was host to the annual Academy of Country Music Awards last night. Taylor Swift wowed in J. Mendel, but it was Nicole Kidman's shirt collar that really made us swoon. The streamlined silhouette of her L'Wren Scott dress was undeniably chic, but the tiny collar added just the right amount of sweetness. Inspired by Nicole, we set out to find our favorite shirt-collar frocks for everything from a casual city stroll to a birthday party to a wedding. Details like lace, sequins, polka dots, and drop waists will give you instant style, while the shirt collar will round out your look with girlish cuteness.