The Backstreet Boys have had a successful run in Las Vegas, starting with their "Larger Than Life" residency in 2017, which led to additional shows and a tour. They are now set to headline at the Sphere with their "Into the Millennium" residency, promising a show that will be larger than life. The band has been working on reviving their 1999 album "Millennium" and is preparing for an immersive and visually stunning production. Additionally, the Sex Pistols are set to perform in Las Vegas for their 50th anniversary, with original members and a new featured singer.