Looks like Sam Smith didn’t want some extra weight to stay with him and did something about it. The U.K.-bred singer showed off his new leaner body on Tuesday (March 17), sharing a photo on Instagram.

He even gave a shout out to the woman that he credits for the dramatic weight loss, author Amelia Freer.

“Three weeks ago I met a woman who has completely changed my life. Amelia Freer has helped me lose over a stone in 2 weeks and has completely transformed my relationship with food,” Smith wrote as a caption for the post. “Everyone go check out her incredible book, and start to live healthy. It’s not even about weight loss it’s about feeling happy in yourself. Love you Amelia & thank you for making me feel so happy inside and out.”

And for all non-Brits wondering, one stone is equivalent to 14 pounds. So believe it or not, that means the soul crooner lost 1 pound each day in a two-week period.

From the way his Instagram has been looking this week, it seems like the “Stay With Me” singer is definitely a changed man for the good.

On Monday (March 16), another pic posted on his account was captioned “Eating Clean.”

And just yesterday (March 18), the Grammy Award winner wasn’t shy about posting yet another image of himself feeling the burn at the gym. “Gym is kicking my ass today," he wrote.

Check out Sam Smith's new and improved body below.

See 10 Extreme Body Transformations