With larger-than-life visuals — like giant dancing robots projected on the 160,000-square-foot interior screen and a futuristic platform levitating each member of the group about 80 feet in the air — and a 1,600 speaker sound system, Rich confessed that the team faced some “challenges” to make the residency come to life.

The boy band's "Into the Millennium" residency extension includes a New Year's Eve performance among seven new dates announced.

Backstreet Boys will be coming back to the Las Vegas Sphere later this year, alright! The boy band’s “Into the Millennium” residency has been so successful that they’re adding seven new shows between Dec.