The "Call Me Maybe" singer will replace Laura Osnes, who received a Tony nomination for the role. Osnes is exiting the show after a yearlong run.
The Grammy Award nominee Carly began performing in musical theatre in high school. Before entering the Canadian College of Performing Arts, she starred in Annie, The Wiz and Grease.
Earlier this year Carly Rae Jepsen wrapped her first headline tour of the U.S. She also is working on a new album next year.