Jessica Simpson's White Swimsuit: Singer Shows Off Cleavage In Hot One-Piece (SEE IT!)

Jessica Simpson has every reason to flaunt her curves! The singer posed in a cleavage-baring white swimsuit while on vacation—and she looks incredible!

The 35-year-old singer is celebrating her birthday with a two-week long vacation in St. Barts, according to Us Weekly, and judging by the photos she's posted to her Instagram, she's having an amazing time!

One particular shot is getting all the attention, though, as Simpson stuns in a tight, white, plunging one-piece that shows off her cleavage. She looks very much like Pamela Anderson, posing against a white wall with her blonde hair in a messy updo, wearing white sunglasses and white heels. "Vacation vibes," the caption read.

Earlier in the trip, she shared another shot, wearing a black bathing suit and coverup showing off her insane leg muscles. As a proud Weight Watchers spokesperson who has struggled with her weight in the past, you can tell she's been working hard to get her body back. Simpson trains with celebrity workout guru Harley Pasternak to keep her already "genetically-gifted legs" in shape, according to People.

"I'd been scrutinized about my weight before I got pregnant, so I refused to let anyone steal the joy of my babies," she told InStyle earlier this year, after being criticized for her post-baby body. "My husband [Eric Johnson] and I were looking at old pictures recently, and I asked him, 'Babe, why didn't you tell me to put the brownie down?' He said, 'You looked great.' He's always loved every curve on my body."

Simpson and Johnson have been together since 2010, and got married around this time last year. They have two children, Ace and Maxwell, together.

Along with her white bathing suit shot, Simpson also shared an adorable photo of her two kids splashing around in a pool on vacation. "Water toddlers," she captioned the photo.