The famed boy band of yesteryear (and today) is called Backstreet Boys, and sometimes the Backstreet Boys, but they are not The Backstreet Boys. Additionally, the round, psychedelic venue in Las Vegas is called Sphere,

The Backstreet Boys announced their “Into The Millennium” residency at the Las Vegas Sphere. Everything you need to know to go.

The Backstreet Boys have announced a nine-date residency at the Sphere in Las Vegas called "Into the Millennium."