How is that? There are music biopics totally sung by the actors, all lip syncing to the original recordings, or a mixture of the 2. There's a John Lennon biopic called Nowhere Boy, where it's about him as a teenager. There's no recordings that exist of John or the other Beatles as teens. Even if there were, they would have most likely been home recordings that wouldn't have the sound quality needed for the movie. That's a reason Tina Turner re-recorded the Ike & Tina songs for her biopic. They used a session singer for Ike's vocals., even though Ike was still alive at the time and he actually visited the film set. What's Love Got To Do With It got some Oscar nominations. The voters didn't seem to care that there were no actual Ike Turner vocals featured in the movie.