Jessica Simpson, who features in the ads of Weight Watchers, a weight loss company, has a new partner onboard. The singer/actor has been joined by Jennifer Hudson, who lost an amazing number of pounds through the Weight Watchers weight loss program. Both the stars have benefited from the program and who would be better than them to promote the brand.

In the ad, Simpson and Hudson are seen raving about the benefits of the program and how it has helped them slim down in a healthy way. “I naturally became a healthier me,” says Hudson. The singer was a size 16 before she joined the program and slimmed down to size 6 in 2010, according to abc NEWS. Simpson was roped in by the brand in May and has lost more than 50 pounds since.

“I amazed myself,” Simpson is heard saying in the ad, to which Hudson retorts, “Get used to it.”

The 32-year-old recently took to Twitter to reveal her pregnancy. There have been rumors of it for quite some time and confirming the news on Christmas, Simpson posted a picture of her daughter Maxwell sitting next to the words, “BIG SIS.”

Due to the pregnancy, Simpson is not following the Weight Watchers diet right now but her contract with the brand remains intact. There has been speculation about how her pregnancy is likely to affect the deal, but a representative of Weight Watchers has quashed all the rumors.

"Jessica's successful weight loss prior to becoming pregnant will be featured in Weight Watchers' new 'Expect Amazing' advertising campaign, including a spot with her sharing the happy news," the representative told abc NEWS.