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From left: Jonah Hill, LeAnn Rimes, Drew Barrymore, Jerry Ferrara and Peaches Geldof have all been looking slimmer of late. Image Credit: Getty Images

Some of Hollywood's biggest stars have been looking more svelte lately. Scene takes a closer look...

Name Jonah Hill
Age 27
Start Weight 16st
Now weighs 13st

Jonah Hill, the artist formerly known as ‘The funny, fat guy’, is almost unrecognisable these days, after dropping an incredible 40 pounds. Flaunting a dramatically slimmer physique on the promo-trail for his new film, Moneyball, with Brad Pitt who is rumoured to have been the inspiration for his total body re-vamp. “It’s not fun. I wouldn’t say it’s the most fun endeavour I’ve ever took on in my life, but it’s important.” Jonah Hill revealed of how he dropped the pounds. “I went and saw a nutritionist and I take it seriously.” And although you may think that Jonah’s trim new shape would be his girlfriend’s dream come true, the svelte star actually broke up with his long-term love this week, she must prefer a rounder man. Ladies… he’s single!

Name Kirstie Alley
Age 60
Start Weight 16st 6lb
Now weighs 9st 4lb

Now more famous for her yo-yo dieting rather than her once-successful TV and movie career, Kirstie claims to have dropped a whopping 100lbs, crediting her stint on reality TV show, Dancing with the Stars for kickstarting her new healthy regime. The actress rather dubiously claims to have shrunk from a US size 14 (UK 18) to a US 4 (UK 8) during her time on the show, and says her dresses had to be taken in by 38-inches by her final episode. And 60-year-old, mum-of-two Alley remains adamant that plastic surgery had no part to play in her weightloss, insisting, "I haven't had surgery and here's the reason: People have plastic surgery to make them look younger. I don't think it makes you look younger. I think it can make you look weirder."  

Name Drew Barrymore
Age 36
Start Weight 9st
Now weighs 7st 10lb

Although never considered overweight by anyone’s standards, the actress-turned-director has embarked on a new diet plan, completely changing the way she eats. “I was a full vegetarian living on carbs,” she spilled of her former eating habits. “Now I eat more protein.” And Drew’s different eating plan has resulted in a remarkable new look for the star, as far from rocking the gaunt look so beloved of celebs on high-protein diets, the 36-year-old actress is looking better than she has in years, with her fabulous new look – which includes running eight kilometres, three times a week – being put down to rumours that the totally loved-up actress is hoping to see her new boyfriend pop the question in the not-so-distant future.

Name Snooki
Age 23
Start Weight 9st 7lb
Now weighs 8st 2lb

Jersey Shore’s Snooki is famous for her lack of inches and non-lack of attitude, but can now add ‘dramatic weight loss’ to the list of no-talent-required things that she’s known for. In her characteristically outrageous way, the reality TV star is not putting her weightloss down to sensible eating, but instead credits her shrinking figure to a diet pill. “Glad to hear reports that say I look good =) but it's not because of HCG! Thanks @Zantrex!” tweeted the super-tanned star, confirming that controversial new diet pill Zanatrex is to thank for her new figure.

Name Katie Holmes
Age 32
Start Weight 9st 7lbs
Now weighs 8st

Frequently spotted leaving the gym after one of her regular gruelling workouts, Katie Holmes has been looking noticeably slimmer of late - and Hollywood-watchers are speculating that the reasons behind Katie’s dramatic weight loss are far from healthy. Sources claim that her dramatically slimmer figure is the actress’ way of taking charge of one aspect of her life that her famously controlling husband, Tom cannot influence, and is often verging on ‘hunger strike,’ frequently swapping meals for Diet Coke.

Name LeAnn Rimes
Age 29
Start Weight 8st 8lb
Now weighs 7st 7lb

The Twitterverse exploded recently after country singer-turned actress LeAnne Rimes posted a photo of her bikini body showing off her new skeletal bod. And despite being obviously thrilled with the huge amount of press coverage she received for her weightloss, the newlywed took to Twitter, to retaliate, tweeting, “Dear lord! I do not work out too much nor do I starve myself. I'm so over this and moving on.” And her husband, Eddie Cibrian, jumped to her defence claiming that LeAnne has a healthy diet and strict exercise regime to thank for her new figure, saying, “She eats pretty healthy, but she works out pretty hard too and she actually takes pride in the way she looks, [but] she’s far from unhealthy.” 

Name Peaches Geldof
Age 22
Start Weight 10st
Now weighs 8st 7lb

An almost unrecognisable Peaches Geldof debuted her new slimmed down figure at a pre-Fashion Week party in New York last month. With twig-like legs and a protruding collar bone, the British socialite’s weightloss showed a marked departure from the fuller-figured Peaches who was spotted frolicking topless on the beach, last year. The 22-year-old celebuspawn, who has been accused of drug-taking in the past, was quick to deny speculation that addiction is behind her dramatic new look. Instead putting her pound-dropping down to being struck down with “avian flu”, Peaches has also credited good old healthy eating with the rest, claiming, “Obviously I'm going to look thinner if I don't sit around eating pizza and chips. It's just how the body works. You are a product of what you eat.”

Name Jerry Ferrara
Age 31
Start Weight 15st 13lb
Now weighs 11st 12lb

For Entourage fans, it was like there was a whole new character to ogle in the eighth and final series of the hit show in the form of perennial hanger-on Turtle aka Jerry Ferrara. The actor, who has worked hard to slim down slowly over the past year, won a whole new legion of fans after he was spotted proudly showing of his svelte new frame on Malibu beach. When quizzed about his incredible transformation, 31-year-old Ferrara maintains that he lost weight gradually, cutting out burgers and chips and opting for fruit and veg instead, admitting, “I really changed everything [about] what I ate and was drinking, it’s been slow, maybe two or three pounds a month.”