Watch the video below:
King, the six-time Grammy Award winner whose life inspired Beautiful, appeared with Kennedy, who plays her on Broadway, and Mueller, who will play her in the first national tour.
King discussed not seeing the show for the first few months and how the public has reacted to her life story.
King was a guest on "The Today Show" just two weeks ago, performing "I Feel the Earth Move" on the plaza outside the show's studio. Check out Playbill.com's story and a clip of that performance.