The American Idol alum tweeted his critique of the film, which had the actors sing live instead of lip synching on camera, explaining the score suffered because the actors are just "pretending to be singers."

He believes they should have used some studio magic to make everyone sound as good as they possibly could.

It turns out Russell Crowe, who stars at Javert in the movie, doesn't totally disagree with Adam's assessment that the vocals could have been sweetened.