Backstreet’s back alright — the beloved boy band Backstreet Boys have announced a residency at the Las Vegas Sphere, marking the first time a pop act has headlined the venue. The run sees the Backstreet Boys — AJ McLean, Howie Dorough, Nick Carter, Kevin Richardson, and Brian Littrell — bringing their greatest hits to life with the Sphere’s signature state-of-the-art visuals and sound technology.