Hudson's performance pays tribute to the musical's producer, Oprah Winfrey.
Sample another number from Ahrens and Flaherty's world premiere musical.
Four-time Tony winner Boyd Gaines sings one of Ahrens and Flaherty's new tunes.
Watch a clip from the new Kennedy Center production in rehearsal.
Watch the actors sing through the score with the full orchestra for the first time.
Plus the Glee-ful gyrations of Lea Michele and Kate Hudson.