Thus was born Into the Millennium, which kicks off at Sphere July 11 just as the group releases Millennium 2.0, a deluxe reissue of their seminal Millennium album.The quintet didn't take its responsibility as the first pop act in the groundbreaking venue - which has thus far only hosted mostly-non-dancing rock stars and DJs - lightly.

Backstreet Boys have dropped their official Las Vegas residency T-shirt and merch on Amazon to celebrate their Into the Millennium concerts.