The singer was in full diva mode during a Broadway show.
Performances come first in the stripped-down version of the show.
J-Hud, Antonique Smith, Gloria Estefan and more welcome him.
Jennifer Hudson stars in the Denzel Washington-produced flick.
The Pope's visit to include concerts with some of music's brightest.
Watch the Oscar winner belt out the Color Purple theme song with Cynthia Erivo.