Hot Mamas

Britney Spears went green in Rio by showing off all her environmentally sound bits in a bright emerald two-piece bathing suit on Tuesday.

The 29-year-old mother of two is doing her part to make the world a better place.

With temperatures only in the '50s in L.A. this weekend, it was up to gorgeous Rebecca Romijn to bring on the heat in her sexy two-piece bikini.

The 39-year-old mother of two braved the cool weather and showed off her smokin' hot body while on a photo shoot.

Jennifer Lopez showed off her sexy, taut mother of two tummy while in Argentina on Thursday.

The newly single 42-year-old is in South America scouting talent for "Q'Viva! The Chosen," the Spanish language singing competition she is producing with estranged husband Marc Anthony.

Jessica Simpson has finally confirmed what everyone already knew ... she's pregnant.

The singer just tweeted, "It's true ... I"m going to be a mummy!" -- posting a pic of herself in a mummy costume ... holding her baby bump.

Scary.

Bikini-clad supermodel Gisele Bundchen Brady showed off her, er, maternal instincts by frolicking on the beach in the Caribbean with her adorable son Benjamin on Friday.

Jessica Simpson arrived at JFK on Sunday with some extra baggage ... around her midsection.

While speculation is rampant that it's a baby bump, the 31-year-old has not confirmed if she is pregnant or not.

Looks like she may need those infamous mom jeans again after all.

Demi Moore looked to be in desperate need of a good meal when she hit the N.Y. premiere of her new movie last night ... and according to Joan Rivers, it's because Demi BARELY ate anything on her flight in from L.A.

Joan was on the same flight as Demi ... and after she got off the plane, Rivers sold out her co-passenger to the paparazzi ... telling them that all Demi ate on the 6-hour flight was an apple ... and some water.

By the time Demi hit the red carpet ... it was Moore who was feeding the media, by sporting her wedding ring ... despite rumors that her marriage to Ashton Kutcher is on the rocks.

"Bachelor" winner Shayne Lamas just treated her unborn fetus to its very first NUDE photo shoot ... and TMZ has the pics.

Lamas is weeks away from giving birth to her first child ... fathered by TheDirty.com honcho Nik Richie ... and before she pops, Shayne made sure to capture the beauty of pregnancy in all its stark naked glory.

Beyonce and her alleged baby bump (kidding!) went out for a stroll in New York City yesterday.

Christina Aguilera sang "Dirty Diana" and "Smile" at the MJ Tribute concert in Wales this weekend.

It was gripping.

After fighting with Kelsey Grammer in family court over visitation of their two children on Friday, "Real Housewives of Beverly Hills" star Camille Grammer escaped for some relaxing bikini time in Palm Springs with her new boyfriend and her kids this weekend.

From the looks of Heather Locklear's gorgeous booty in Hawaii, you'd never know she just turned 50.

Like Ashlee Simpson, Locklear showed off her amazing body in a polka dot bikini with fiance Jack Wagner this weekend.

Being a half century old never looked so damn good.

While in Mexico this weekend, former singer Ashlee Simpson rocked a polka dot bikini which showed off her hottest asset.

Who knew Ashlee would turn out this good in the end?

Jennifer Lopez was single and ready to mingle last night in Las Vegas, hitting up PURE nightclub in Caesars Palace.

Old pals Samantha Ronson and Nicole Richie made their way down to Mexico this weekend, enjoying a little time in the sun while south of the border.

Carrying Jay-Z's unborn not only has Beyonce glowing ... it's got her sparkling too.

The gorgeous mom-to-be was radiant in a glittery blue jacket and mini-dress in NYC last night.

Bey is due in February.