Stephanie Mills is talking about her sisters in song, Patti LaBelle, Chaka Khan, and Gladys Knight, with whom she’s performing on a tour titled The Queens: 4 Legends 1 Stage. Queens, and ...

tour unites all-timers Patti LaBelle, Gladys Knight, Chaka Khan and Stephanie Mills. The outing launches in Vegas at 8 p.m. Friday at Michelob Ultra Arena. Tickets start at $103; axs.com.