Mr. Beast is trying a new morning workout ... lifting weights with Ashton Hall, the influencer who went viral for his crazy daily routine -- and, it looks like the real beast in the gym ain't the one with it in his name.
The YouTuber joined Hall to sample some of his insane morning routine ... including dunking his head in a bowl of ice water with lemon wedges dropped in.
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Mr. Beast and Hall then get into the nitty-gritty of the workout .