Dwayne Johnson has attributed his recent weight loss to be ready for his next movie role where he will portray a 70-year-old called Chicken Man in the upcoming Lizard Music film.

Variety says that the movie is an adaptation of Daniel Pinkwater novel and tells the story of a septuagenarian whose best friend is a 70-year-old chicken. It will be directed by Benny Safdie, who also directed The Smashing Machine.

Variety notes that Johnson shed around 30 pound of muscle and still has a long way to go.

“I’m so excited to get a chance to hopefully transform again like I was able to do in ‘Smashing Machine,'” Johnson added. “[It means] eating less chicken.”

The Rock’s next filming will be Jumanji 3 which starts in November.