He already had the muscles, he just needed a green dye job.
Dwayne "The Rock" Johnson takes home first prize for best celebrity Halloween costume this year. The 40-year-old actor shared a photo of himself dressed up as The Hulk on his Facebook page:
"Don't make me angry.. You wouldn't like me when I'm angry" ~ The People's Hulk. Happy Halloween!" he wrote.
Check out more stars in Halloween costumes: