Timothée Chalamet took vocal lessons in order to play Bob Dylan in A Complete Unknown, and his vocal coach, Eric Vetro, is revealing what it took to get him there.
Vetro, who also worked with Austin Butler for Elvis, tells Rolling Stone that the key was figuring out, "what is the essence of this person? What makes their voice stand out?"
And with A Complete Unknown opening Dec. 25, Vetro is now tackling another iconic rocker, working with Jeremy Allen White on his portrayal of Bruce Springsteen in Deliver Us From Nowhere.