The Backstreet Boys kicked off their summer residency at Sphere in Las Vegas on July 11, and Parade was there to catch a show opening weekend.

The group launched their Into the Millennium shows with a slew of emotions: "I started breaking down and crying because it was so emotional and surreal."

Preparing for liftoff with Millennium opener “Larger Than Life,” the global stars of our childhood blasted off with a 25-song set, christening Sphere as the first pop act to perform there.