Backstreet Boys' AJ McLean and Howie Dorough are among the famous contestants who'll be competing on Who Wants to Be a Millionaire during the show's upcoming Celebrity Week: Las Vegas. Starting Monday, October 15 and wrapping up October 19, stars who are currently appearing in Las Vegas will compete on the long-running game show for the chance to win $1 million for their favorite charity. AJ and Howie will take a break from their super-successful Larger Than Life show at the Zappos Theater at Planet Hollywood to kick off Celebrity Week on that Monday. They'll be playing for St. Jude Children's Research Hospital. The other celebrities who'll appear on Millionaire during the week include iconic '90s hip-hop duo Salt-N-Pepa, who are currently headlining I Love the '90s - The Vegas Show at Paris Theater at the Paris Hotel & Casino. Comedian Tom Green and former Late Night bandleader Paul Shaffer round out the Vegas Week lineup of celebs. Who Wants to Be a Millionaire, hosted by Chris Harrison, airs in syndication nationwide -- check your local listings or go to MillionaireTV.com. Copyright © 2018, ABC Radio. All rights reserved.