Dwayne 'The Rock' Johnson Puts His Huge Muscles on Display in Ice Bucket Challenge - Watch Now!

Check out Dwayne ‘The Rock’ Johnson showing off his muscles while completing the ALS Ice Bucket Challenge to raise awareness for ALS!

“Called out by the champ @RondaRousey Nominating my boys @channingtatum @mark_wahlberg @slate9,” the 42-year-old wrote with the video. We hope to see Channing Tatum and Mark Wahlberg join the challenge soon!

PHOTOS: Check out the latest pics of Dwayne Johnson

Also pictured: Dwayne rocking a suit while attending a photo call for his new film Hercules with director Brett Ratner at St Regis Hotel on Monday (August 18) in Mexico City, Mexico.