When we clapped eyes on these pics of Matthew McConaughey we were a little surprised to see him not looking his usual buff self.
But after bulking up for his role in stripper movie Magic Mike, Matt's been shedding the pounds for his latest film role playing an HIV patient.
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Matthew McConaughey with his wife Camila Alves
The star - pictured here with his wife Camila at a screening of his current film, Killer Joe - has already lost 15 pounds for his part in Dallas Buyers Club.
Matt plays Roy Woodruff, a man who contracts HIV and decides to smuggle the drugs needed for his treatment over the border into the US.
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Despite already shedding 15 pounds, Matt intends to lose another 15 and has been seen pounding the streets of New York in a bid to downsize further before filming starts in September.
> IN PICS: CELEB FAT FIGHTERS
Weight Loss Stars
(01 of19)
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Former 'Loose Women' star Denise Welch lost over two stone after becoming the face of LigherLife and taking up a new fitness regime in 2013.
(02 of19)
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At her thinnest Natalie wanted the whole world to know she'd lost weight. An inevitable work out DVD followed. (credit:Rex)
(03 of19)
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The Steps singer managed to shed the weight she gained after the band split, but then she fell pregnant and battled to lose it since. (credit:Rex)
(04 of19)
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Gastric-band-gate swept the nation when it was revealed Fern hadn't exactly told the truth about her weight loss. (credit:Rex)
(05 of19)
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Dawn French was always been known for being a bit on the larger side, and that's why we loved her. Well, there's less of her to love now as since her split with Lenny she's shed a fair few pounds. (credit:WENN)
(06 of19)
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That picture on the left actually scares us. It's like she wants us to motorboat in that cleavage. Bleugh. (credit:Rex)
(07 of19)
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Bristolian comic Justin Lee Collins has gone from rock-sized to rock star after dieting. (credit:Rex)
(08 of19)
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Former Emmerdale actress Pauline Quirke lost several stone after being told she was morbidly obese. (credit:Big)
(09 of19)
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It was revealed that Geri's dramatic weight loss was due to an eating disorder. Luckily she's settled back to a healthy weight now. (credit:Rex)
(10 of19)
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He's the man of the moment on The X Factor, but after the original Take That split Barlow ballooned. (credit:Wire Image / Big Pictures)
(11 of19)
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James Corden's role in One Man Two Guv'nors helped him to shift over five stone. (credit:WENN)
(12 of19)
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TOWIE's Gemma shed four stone on a bid to win Mick Norcross. She gave up the bags of crisps but didn't manage to bag the bloke. Good job she's got Arg now then. (credit:Big)
(13 of19)
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Pete's frame isn't the only thing shocking here. WTF is with that hair? Anyway, Pete shed the pounds when he split with Jordan. We didn't hear anything about that? (credit:Big)
(14 of19)
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Eh up, don our Kerreh look slim. Must 'av been on t'Weight Watchers. (credit:Big)
(15 of19)
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Jack Osbourne has struggled a lot with his size and is still yo-yoing with his weight now. (credit:Big)
(16 of19)
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Gerard Butler has never exactly been a porker, but he's swapped his stocky frame for a much leaner one. (credit:Big)
(17 of19)
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Jessie Wallace looked unrecognisable after slimming down, but since returning to Easties, Jessie has regained Kat's curvier figure. (credit:Big)
(18 of19)
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Superbad actor Jonah Hill made jaws drop across the world when he unveiled his new look at an awards bash. He's hoping to lose more too. (credit:Big)
(19 of19)
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The once teeny weeny, leather-chaps wearing Christina Aguilera got tongues a-wagging when she ditched her slight frame. (credit:WENN)