K Simmons has showed off his impressive physique ahead of new festive film Red One.
Johnson shared a collection of photos of the pair training together, which showed Simmons sporting a long white beard.
The Black Adam star praised Simmons for “working his ass off” to get into “amazing shape” for the role.
“Ladies, gentlemen & children of all ages.. the coolest, strongest, kindest, most bad ass, most loving & most OG Santa Claus of all time,” Johnson captioned the post.
“Brought to life by Academy Award winner, J.K. Simmons who worked his ass off for months to step into this iconic role in AMAZING SHAPE for our Christmas franchise film, RED ONE.
“We’re having a BLAST and so will you and your families when you see our movie!!”