Alexandra Wyman, WireImage
Additionally, the female contestants will come together to honor the recently departed Donna Summer, while the boys will pay homage to the late Bee Gees member Robin Gibb. As part of the ladies tribute, singer/actress Kristin Chenoweth will perform the Donna Summer/Barbra Streisand hit, "Enough is Enough" with finalist Jessica Sanchez.
Also participating in a group salute to Summer will be Gloria Gaynor, Thelma Houston, Gladys Knight, Nelly Furtado, Sheila E., and Jennifer Holliday. The female contestants will also sing with Chaka Khan, and Sanchez is scheduled to perform an encore of "And I Am Telling You I'm Not Going" with Holliday.
The docket also includes the male contestants coming together for a song with Neil Diamond, while Hollie Cavanagh is preparing a Broadway showtune with Season 6 winner Jordin Sparks.
As previously announced, Rihanna and Aerosmith will also appear in the finale.
Watch all the performances and see if Phillip or Jessica take home this year's crown tonight (May 23) at 8:00 PM ET on FOX.