India, Jan. 29 -- Hollywood actor Timothee Chalamet, who has received a nomination in the Best Actor category for the upcoming Oscars for his role in A Complete Unknown, has revealed that he not only learned to sing like Bob Dylan but also underwent a physical transformation, which included putting on weight as well.

"I've turned over every stone. I did all the work, like you just described, physically and in terms of behaviour," Chalamet, 29, said in an interview with NPR. "But something we haven't really talked about - I also put on 20 pounds because. believe it or not, I was thinner than the guy," he added.

In addition to gaining weight, Chalamet learned to play the guitar and sing like Dylan. He portrays a young Dylan at the start o...