In March 2001, he made his acting debut, guest starring on an episode of the Disney Channel series "Lizzie McGuire". That same month, he and fellow teen star Samantha Mumba performed a concert in MGM studios live on Disney Channel, titled "Aaron Carter and Samantha Mumba in Concert". Aaron's part of the concert was released to DVD that same month as . In April 2001, he made his Broadway debut, playing JoJo the Who in "Seussical the Musical" by Lynn Ahrens and Stephen Flaherty.