Yes, the skaters in Disney On Ice do not speak or sing live; instead, they perform to a high-fidelity pre-recorded soundtrack. This "lip-syncing" approach is necessary for several practical and creative reasons. First, it ensures that the voices heard by the audience are the "official" high-fidelity voices of the characters (like Tom Hanks for Woody or Idina Menzel for Elsa), providing a consistent brand experience. Second, the physical exertion required for high-level figure skating—including jumps, spins, and lifts—makes it nearly impossible for a performer to maintain the steady breath control needed for live singing or dialogue. The performers undergo high-fidelity training to synchronize their mouth movements and facial expressions with the audio track to maintain the theatrical illusion. This allows the show to focus on spectacular choreography, pyrotechnics, and lighting, creating a high-fidelity spectacle that mirrors the quality of the original Disney films while ensuring the skaters can focus entirely on the athletic demands of their performance on the ice.