Hugh Jackman & Zac Efron Flaunt Their Muscles at the Gym!

Hugh Jackman and Zac Efron were gym buddies today!

The 49-year-old Logan actor and the 30-year-old Baywatch star, who co-star in The Greatest Showman, showed off their guns in a photo Hugh shared on Instagram on Monday (December 18).

“Showing @zacefron the sights … #aussie #workout,” Hugh captioned the pic, which Zac reposted.

ICYMI, watch the duo perform a live commercial for The Greatest Showman during the live A Christmas Story Live the day before. It included 150 dancers in a massive spectacle of song and dance.

Don’t miss The Greatest Showman when it hits theaters this Wednesday!