The Backstreet Boys have added three extra dates to their "Into the Millennium" residency at the Las Vegas Sphere, extending the run into New Year celebrations. The band announced on 10 August that shows would be added on 31 December, 1 January and 2 January "due to continued fan demand," giving fans a chance to see in 2027 with the group. The residency, which launched in July 2025, made the Backstreet Boys the first pop act to headline the venue.

Tickets go on sale in stages: a fan club presale begins at 10am PT on 18 August, followed by an artist presale on 19 August, with general sale opening on 21 August. Since the residency began, members Nick Carter, Howie D, AJ McLean, Brian Littrell and Kevin Richardson have played to an estimated 750,000 fans across 47 sold-out shows, marking 1999's Millennium album, which spent ten weeks at number one on the Billboard 200. The news follows a run of July shows at the Sphere and comes as the band also released "Bottle Up" for Paw Patrol: The Dino Movie.