Watch American Idol season 5 runner-up Katharine McPhee perform “What Baking Can Do” from the Broadway musical Waitress. She’ll be taking over the role of Jenna in April.
American Idol season 5 runner up Katharine McPhee is headed to Broadway to play the lead role in Waitress, but first check out her version of the musical’s show stopper, “She Used to Be Mine.”