Jessica Simpson – 50 Pounds

Remember when Jessica Simpson stepped out in “Dukes of Hazzard” in her Daisy Duke?? Yeah, damn. The beautiful blonde always had a very lithe, petite figure, despite a, er… larger chest! Ideal body, right? However, pregnancy makes it hard to keep up.

However, Simpson, like other celebs on our list, found a program that worked wonders for her: this particular program was Weight Watchers. Signing a $3 million contract, the singer became a spokesperson, and the results speak for themselves, shedding 50 pounds!

Gabourey Sidibe – 150 Pounds

Now, if you haven’t seen “Precious,” we recommend you do so. Stat. Its main character was played by breakout actress Gabourey Sidibe. But despite winning a stack of awards for her amazing performance, the actress had something else to be shocked by her weight problem.

It was clear that her very visible size wasn’t inspiring confidence, and she was diagnosed with Type 2 or lifestyle diabetes. Following her diagnosis, the actress decided to re-evaluate her lifestyle choices and underwent weight loss surgery in order to turn things around. The result? The actress has lost almost 150 pounds!

Eminem – 81 Pounds

It seems that Eminem might have found his own songs to be inspirational when it comes to working out – pretty sure “Just Lose It” is a mainstay on every hardcore gym playlist, right? Back in 2007, however, Eminem had a brush with death, almost passing from a sleeping pill overdose.

After he recovered, he was checked into rehab and was set back on a straighter path. While in rehab, he did, however, pile on a few pounds. But after gaining weight, he focused on his health and followed a strict eating plan, shedding an amazing 81 pounds over the course of several months!

Natalie Portman – 20 Pounds

Now when you start off slim, it’s pretty difficult to shed even more weight. But the best actors and actresses will go to the ends of the earth for a role. So the waif-like Portman lost 20 pounds for her role as a ballerina in “Black Swan.”

Her role as Nina Sayers won her much international acclaim, but it wasn’t without its trials. The demanding role saw Portman follow a whole foods diet and ridiculous workout routine so that she could achieve the specific look for the role.

Kim Kardashian – 70 Pounds

Arguably the most famous woman in the world, Kim Kardashian, was the woman who brought thick and curvy back. The reality TV star, model, and socialite (and actress…heh), is renowned for those killer curves and booty. But, those curves got a little out of control.

“The Keeping Up with the Kardashians” star struggled with weight gain after giving birth to her first child, North. So getting a PT and fixing up her cravings helped Kim to drop 70 pounds. Apparently, Atkins was the secret, folks. Get on it!

Kendra Wilkinson – 55 Pounds

Now when you’re a Playboy bunny, everything is about looks. You’re photographed within an inch of your life, and the attention is all on how hot you are. Kendra Wilkinson, who became Hefner’s girlfriend in the infamous mansion, was the bombshell blonde that every bunny aspired to be. But in her position, gaining pounds is a hit on her career.

The busty Wilkinson put on around 60 pounds whilst pregnant (which is totally normal and natural, of course!), but it felt disastrous for the Playboy bunny. Despite the rumors, Kendra didn’t undergo any plastic surgery – she lost the 55 pounds she wanted to, naturally.