Jessica Simpson confirmed that she and fiancé Eric Johnson will definitely tie the knot this year.

"The new year will definitely bring on the wedding bells, which is exciting. I think it's about time," Simpson said in a new Weight Watchers ad.

"Knowing that I have the wedding coming up is definitely incentive to stay on Weight Watchers, keep counting my points and stay in the gym. I mean, when you see my dress, you'll know."

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Watch the video here.

The 33-year-old, who gave birth over the summer, has now gone back to her pre-pregnancy weight using Weight Watchers' two-week Simple Start program.

Simpson and the former NFL star, who started dating in 2010, have two children together. Their daughter Maxwell Drew Johnson was born May 1, 2012 and son Ace Knute Johnson on June 30, 2013.

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Simpson was heavily teased for her weight gain during her pregnancy with Maxwell. While her weight gain with her second baby wasn't as extreme, she was still ridiculed.

"It does get old having people harping on how much you weigh or your body after pregnancy. I need to feel comfortable in my own skin," she recently told USA Today. "People are going to pick me apart no matter what I do. I'm always going to have critics out there who will make a story out of something."

Tags: Jessica Simpson Eric Johnson