Two words: Dolly Parton. 👑 Country music's biggest stars turned out Monday in Las Vegas for the 57th Academy of Country Music Awards, hosted by none other than Dolly Parton, Jimmie Allen and Gabby Barrett. Swipe through for the show's top moments and best red carpet fashions, starting with the woman of the night, "The Queen of Country." 📸 Andrew Nelles, The Tennessean-USA TODAY NETWORK