Who are the backup vocalists in John band?

Elton John's current band consists of Nigel Olsson on drums, Davey Johnstone on guitar, Matt Bissonette on bass, John Mahon on percussion, Kim Bullard on keyboards, and Ray Cooper on percussion. John's longtime backing vocalists, which included Davey Johnstone, Dee Murray, Nigel Olsson, Billy Preston, Ray Cooper, Patti Austin, Kiki Dee, and Tony Burrows have either retired or passed away.