Chris Hemsworth Takes on the Ice Bucket Challenge & Nominates His 'Avengers' Co-Stars! (Video)

Check out Chris Hemsworth showing off his big muscles while completing the ALS Ice Bucket Challenge to raise awareness for ALS!

“Thanks to Robert Downey Jr for nominating me for the #IceBucketChallenge. Challenge accepted,” the 31-year-old Thor actor wrote with his video. “I now nominate Jeremy Renner, Mark Ruffalo and Chris Evans. You have 24 hours! Don’t forget to make a donation.”

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Chris was unable to complete the challenge in less than 24 hours so he made sure to mention that he will be making a donation of his own – Go Chris!