Hot Mamas

Reese Witherspoon's been a lot more fun lately ... The Proof? Let's just say, 24 proof.

Reese let loose Saturday night, looking pretty tipsy as she got on stage to sing "Jackson" with Kenny Chesney ... and she paid a pretty penny for the duet.

Maybe nostalgia prompted her to drop $24,000 for Drew Brees' foundation at a bash hosted by Matthew McConaughey. In return she got to sing at the House of Blues in New Orleans.

Reese swayed and shimmied in a white lace dress, and even pretended to pick at her teeth -- real country style.

After warbling the first few notes she hit her stride ... then faltered again.

Kim flashed her engagement ring for photogs ... and then she gave 'em the same rearview wedding guests will see walking down the aisle -- and it's glorious.

Jennifer Lopez and her mother were cruising through Manhattan when it happened -- our camera guy got the magical shot that proves Jenny from the block ... is also a chip off the ole one.

And Mama Lopez has all the proof (and junk) we need (in her trunk).

Jennifer Lopez and her mother were big hits walking the streets of Manhattan yesterday, and if you didn't know they were related ... a quick pan down of our camera revealed the family resemblance.

J. Lo and her mother, Guadalupe were shopping on Madison Ave. where they encountered a bunch of fans ... including one woman who joked she was happier to meet mom than J. Lo.

Jenny does talk to us about where she used to get her hair did -- but, honestly, it was hard to focus due to the view of mother and daughter butt ... and their shared DNA.

Madonna's not ACTUALLY a slutty attention whore who planned to expose her nipples at the fanciest event in the world -- literally dressed like Leeloo from "The Fifth Element" -- at least that's what she's saying now ... claiming the photo she posted online Monday was a joke.

Sources close to the singer tell TMZ, she was just kidding when she posted the photo with the caption, "What i wanted to wear to Met Ball but Anna [Wintour] said Not this year! So I'm gonna work on music instead?"

Our sources say Madonna didn't even have plans to go to the Gala ... she was in the studio Monday night during the event and will stay there all week.

This just in: Madonna is 55 years old.

Mel B looked like a Yukon miner on a digging expedition ... going in fist deep for SOMETHING.

Mel was all dolled up in Beverly Hills Monday for an outdoor photo shoot when she quite literally got her panties in a bunch. The question ... what is out of sorts?

A. Her thong
B. Errant poop
C. Her Shirt

The first option is plausible, but let's not jump to conclusions ... yet. The second is super questionable.

The third option is the most compelling -- she probably tucked her shirt into her skirt and did a simple pull-down.

Heidi Klum's new boyfriend, 27-year-old Vito Schnabel, went topless yesterday as he palled around in the ocean with Heidi in Tulum, Mexico.

Oh, did we mention SHE WAS TOPLESS TOO?!?!?!?

Schnabel is an art dealer in New York City. He's been previously linked to Demi Moore, Elle Macpherson and Liv Tyler. His father is Julian Schnabel ... director of films like "The Diving Bell and the Butterfly," "Before Night Falls," and "Basquiat."

67-year-old Cher is still super proud of her boobs ... and proved it by sportin' a pair of nipple pasties this week at a concert in Boston.

Cher -- who also rocked a pink wig, pink lip gloss at her Dressed to Kill tour -- seemed extra perky that night ... and also broke out her old low-plunging black onsie from her "If I Could Turn Back Time" video.

As for the nipple pasties ... one question -- doesn't it hurt to take those things off??

Bundchen's bum is undefeated against thongs, so Gisele had to ...

RELEASE THE KRAKEN!

Some people glam it up for a trip to LAX, knowing paparazzi will be there ready to snap their photo.

Britney Spears is not one of those people.

It's her prerogative.

Don't expect Megan Fox to wear mom jeans after popping out another kid last month ... because she already lost all the baby weight -- in 5 freaking weeks!

Fox ran some errands Friday in Los Angeles with her other son Noah -- after giving birth to Bodhi Ransom in February -- and one thing is clear, girl was looking GOOD.

Chris Hemsworth and his wife are at Cedars Sinai Medical Center right now giving birth to twins ... TMZ has learned.

It's ultra-high security in their hospital suite ... we're told 2 security guards are standing at the door. Chris is strolling the hallway and is being escorted with a guard.

Chris and his wife Elsa Pataky already have one baby -- India Rose Hemsworth who is now 22 months old. She's about to have a couple new siblings.

It's the question millions of couples ask themselves before entering the delivery room -- and now Jay Cutler's in the same boat -- does your wife want you to see EVERYTHING when she's giving birth?

Fortunately for the Chicago Bears QB -- he won't have to guess ... 'cause his wife Kristin Cavallari was out in NYC today and told us.

Atlanta Falcons lineman Kroy Biermann might not be ready to retire yet ... but his balls are -- 'cause the defensive end tells TMZ Sports his baby makin' days are officially over.

Kroy and his reality superstar wife Kim Zolciak were leaving LaGuardia Airport in NY this weekend without their 4-month old twins ... the 5th and 6th kids in the Biermann family.

Of course, we had to ask if the couple was planning on poppin' out a lucky #7 ... but Kroy made it crystal clear six is plenty enough.

Just like most plus size girls who lose a ton of weight ... Jennifer Hudson is dumping her main squeeze -- Weight Watchers.

Hudson says her time with the diet company has been life changing ... a total understatement ... she went from a size 16 to 6, losing 80 lbs, using the product -- and got pretty damn hot in the process.

J Hud linked up with W.W. in 2010 after giving birth the year before.

Company honchos say they assume she will continue using their products.

It sure seems to work better than pizza.

"Basketball Wives" star Jackie Christie thinks pregnant women with ornery cats should kill the kitties by hanging, choking or other means if necessary.

It's pretty shocking ... our photog asked Jackie (in the dark blouse) and her friend, Sundy Carter (who appeared in "Bringing Down the House" and "Soul Plane") about what a pregnant woman should do with a temperamental cat.

Both women have no mercy for fearless felines. In fact, Jackie actually thinks cats can suck the soul out of babies and even kill them.