Jessica Simpson is looking lean and mean after losing 60 pounds of post-pregnancy weight, and it's all thanks to eating right and exercising. Oh, and a few million dollars.
READ: Jessica Simpson Instagrams Skinny Photos
Five months after reportedly inking a multi-million dollar deal to be a spokeswoman for Weight Watchers, Simpson is flaunting her slimmed-down bod for the upcoming commercials and posting pics of herself on her personal Twitter page.
But Simpson isn't the first celebrity to get skinny with the help of a weight loss program. Plenty of portly celebs have joined similar systems for their much-needed motivation (and in some cases, money) to get moving.
Here are eight more famous faces who served as spokespeople for weight loss companies.
Kirstie Alley brought Valerie Bertinelli on board as a Jenny Craig ambassador in March of 2007. Less than two years later, she was posing in a bikini on the cover of People magazine.
Currently a spokesperson for Nutrisystem, Marie Osmond credits the weight loss program with helping her shed 50 pounds.
Following the birth of her twins in 2011, the songstress signed on with Jenny Craig and shed 30 pounds.
After struggling for years to lose her post-pregnancy weight while the British tabloids called her "the Duchess of Pork," Sarah Ferguson, the Duchess of York, became a spokeswoman for Weight Watchers in 1997.
Charles Barkley is the face of Weight Watchers' "Lose Like a Man" ad campaign. While on the program, the former NBA star reportedly dropped 42 pounds from his 6-foot 6-inch frame.