Quick Results!Luke Evans treated his IG fans to a thirst trap ... after shedding 17 lbs in just 10 weeks.
The actor showed off his rippling abs in a scorchin' hot IG clip Monday ... rocking nothing but a pair of light wash torso-enhancing jeans.
Luke spilled the tea on his weight loss journey ... attributing it to the high-energy hustle of his West End role as the late Queen Mother's steward, William Tallon, in "Backstairs Billy" at London's Duke Of York theatre.
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