Jessie James Decker South Beach Diet Shoot

Jessie James Decker is a proud mother of three, but admits that getting back into a bikini just seven months after delivering her newest family member, Forrest Bradley Decker, was a little intimidating.

"I will admit I was anxious about having a bikini shoot after just having a baby and maybe I even cried a little from being so nervous and worried people would say not nice things," Decker writes in a post on Instagram. "But I woke up feeling ok about it today, because I want to show other mamas that we can do it."

Decker is the latest spokeswoman for the South Beach Diet marketing campaign, but she has been adhering to the diet for a while now without even realizing it. It has been a natural partnership.

"I know the program works, which is why I turned to it again after I had Forrest," she says. I've been very open about how the weight hasn't come off as easily after my third baby, and although I haven't reached my goal yet, I can honestly say that I feel so good and incredibly healthy."

The singer-songwriter previously partnered with South Beach in April 2017, as an ambassador and social media influencer after having her second child. Now, she'll be featured in a 360-degree marketing campaign which includes television, online, digital and social media features.

Following the photo shoot in Miami, Decker shared back-to-back photos on Instagram showing her bikini body after delivering her second child, son Eric Decker II, and then after her current baby, Forrest.

"I am not quite at my goal yet but I’m getting close!" she says. I prefer my body on the right. I’m fit and eating better calories and really keeping track of my protein intake! My goal as a mom of 3 now is to be healthy and fit and feel good."

See More Celeb Singers Who Are Killing It in Their Bikinis: 

More From Taste of Country