The Miss USA pageant went down in Las Vegas on Sunday night, and as always, it was a night to remember. Aside from crowning Deshauna Barber, an Army Reserve officer and IT analyst from the District of Columbia, as the winner, there were also a few other special moments throughout the night. Not only did Julianne Hough [1] look like a complete knockout [2] during her cohosting gig with Terrence J, but there was also plenty of nostalgia as the Backstreet Boys [3] performed a medley of some of their greatest hits [4]. If you didn't catch the show, we've rounded up all the best moments for you here!