The Backstreet Boys are officially keeping their Las Vegas run alive into 2026. Their "Into the Millennium" residency at the Las Vegas Sphere, which began in July 2025, is now officially being extended.The group has added seven new shows between December 26, 2025, and January 3, 2026. The expansion includes a special New Year's Eve concert on December 31, 2025. The extension comes after all 21 previously announced dates sold out.The Backstreet Boys consist of Nick Carter, Howie Dorough, AJ McLean, Brian Littrell, and Kevin Richardson. They are the first pop act to perform at Sphere. Their residency features a full performance of their 1999 blockbuster album Millennium with a career-spanning setlist. View this post on Instagram Instagram PostThe Backstreet Boys took to their official Instagram handle to announce the Sphere residency extension, captioning:"OH MY GOD, WE'RE BACK AGAIN! We know we said we were done for this year, but that was before you guys sold out 21 nights at @SphereVegas! So we worked hard to get some more shows scheduled to make sure everyone who wants to see the show can come to Vegas."The post continued:"We are excited to announce the addition of 7 'Into The Millennium' residency dates on Dec 26, 27, 28, 30, 31; Jan 2 & 3! 🌐💫 All presale, VIP, and on sale information available at sphere.backstreetboys.com"The Backstreet Boys were formed in 1993. Their third album, Millennium (1999), became a beloved record of the late '90s. It topped charts worldwide and earned multiple Grammy nominations. The album's beloved singles include "I Want It That Way" and "Larger Than Life."Backstreet Boys at the 2025 Stagecoach festival (Image via Getty)Complete itinerary for Backstreet Boys' 2025-26 Las Vegas Sphere residencyAugust 2025August 15, 2025, Las Vegas, NV, at SphereAugust 16, 2025, Las Vegas, NV, at SphereAugust 17, 2025, Las Vegas, NV, at SphereAugust 22, 2025, Las Vegas, NV, at SphereAugust 23, 2025, Las Vegas, NV, at SphereAugust 24, 2025, Las Vegas, NV, at SphereDecember 2025 - January 2026 (Newly added dates)December 26, 2025, Las Vegas, NV, at SphereDecember 27, 2025, Las Vegas, NV, at SphereDecember 28, 2025, Las Vegas, NV, at SphereDecember 30, 2025, Las Vegas, NV, at SphereDecember 31, 2025, Las Vegas, NV, at SphereJanuary 2, 2026, Las Vegas, NV, at SphereJanuary 3, 2026, Las Vegas, NV, at SpherePresale code and ticket infoTickets for the Backstreet Boys' newly added dates will go on general sale on Friday, August 22, 2025, at 9:00 a.m. PT via Ticketmaster. Multiple presale options are available ahead of the public sale:Backstreet Army Fan Club presale: Tuesday, August 19, 2025, at 9:00 a.m. PT through Wednesday, August 20, 2025, at 8:00 a.m. PT. Existing members can use previously issued codes.Artist presale: Wednesday, August 20, 2025, at 9:00 a.m. PT. Registration is open until Sunday, August 17, 2025, at 7:00 p.m. PT.Live Nation presale: Thursday, August 21, 2025, at 9:00 a.m. PT using access code RHYTHM.Venue presale: Thursday, August 21, 2025, at 9:00 a.m. PT using code SOCIAL.Fans can keep an eye on the official Backstreet Boys channels for further updates.Also Read: Ryan Davis & The Roadhouse Band 2025 North American tour: How to get tickets, dates, venues, and more exploredRaekwon x Mobb Deep 2025 U.S. tour: Presale code, dates, venues, and more explored