Jessica Simpson Weight Watchers Photo: It Was Fun While It Lasted!

Owner of one of Hollywood's most talked-about bodies, Jessica Simpson proudly showed it off while shooting a Weight Watchers ad in the California desert a few months ago.

Now, since Eric Johnson got Jessica Simpson pregnant again, she's already back to hiding her baby bump with baggy sweaters and giant handbags.

Doesn't it figure.

After giving birth to first child, daughter Maxwell Drew Johnson, in May, the 32-year-old singer-fashion designer managed to shed 50 pounds on Weight Watchers.

It was fun while it lasted, right?

In an outtake from the "Expect Amazing" campaign, the famous blonde looks radiant and slim in tight jeans, boots, low-cut blank tank top and plaid shirt.

Needless to say, she looks great.

"Weight Watchers changed my relationship with food, and I feel so much more prepared to make the right choices," says the star. "It feels pretty incredible.”

Hopefully it will feel just as incredible the second time ... and WW doesn't have to cough up another $3 million for Jessica Simpson weight loss PR.