Paparazzi Photo

"Real Housewives of Bev Hills" star Mauricio Umansky snuck a handful of his wife Kyle Richards' butt on the way out of Bootsy Bellows nightclub in Hollywood last night.

Alyson Hannigan was clearly overjoyed at the fact that President Obama was in Los Angeles today, cradling her young daughter as she waved at the motorcade as it made its way through her neighborhood.

This photo may seem innocent to you, but if you live in Los Angeles -- where today and every presidential visit has been nicknamed "Obajam" -- you know the presidential motorcade means TONS of street closures and INSANE amounts of traffic.

La Toya Jackson and Debbie Rowe showed up at an L.A. hospital Wednesday night to spend time with Paris Jackson.

We're told Debbie was inconsolable after she learned her biological daughter took a meat cleaver to her arm and downed a bunch of Motrin in what authorities called a suicide attempt.

In addition to Debbie and La Toya, Katherine Jackson was also present.

Michael Keaton left little to the imagination this weekend on the set of his new movie "Birdman" ... running around Times Square with nothing on but socks and a pair of tighty whities.

It's only been 10 months since Kristin Cavallari popped out her kid ... and she's already snapped back into bikini shape.

The 26-year-old former MTV star -- who's engaged to perennially injured Chicago Bears QB Jay Cutler -- gave birth to their son Camden Jack last August.

Jennifer Lawrence took a break this weekend from winning Oscars (and the 74th annual Hunger Games) to get back in her blue Mystique makeup on the set of "X-Men: Days of Future Past" in Montreal.

Her body of work never disappoints.

"Wedding Crashers" Owen Wilson, 44, and Vince Vaughn, 43, reunited at the premiere of their new movie "The Internship" in L.A. this week.

Question is ...

Polish supermodel Joanna Krupa wants to show the entire world the two perky reasons why everyone should be watching "Real Housewives of Miami."

With the heat in Florida just too much for her beautiful supple skin to bear, the 34-year-old former not hooker "Dancing with the Stars" contestant set her gorgeous gals free and sunbathed topless on Friday.

But Joanna and the twins were not alone, as her lucky ass fiancé Romain supervised the entire accidentally on purpose -- but amazing -- photo op.

Despite all the hype, soccer stud Cristiano Ronaldo really does measure up.

Even though he already looks like a perfectly sculpted plastic sculpture, the 28-year-old Portuguese futbol sensation showed off his entirely hairless, buff bod by rolling up his shorts and going shirtless in order to get properly fitted for his latest waxen statue in Madrid on Thursday.

We're told the human Ken doll has an amazing 43 inch chest, a beautiful 33 inch waist, a pair of glorious 24.3 inch thighs, heavenly 13 inch (unflexed) upper arms and a rock hard 11.8 inch ... forearm.

Size does matter.

Photos of the blood-spattered bathroom where Oscar Pistorius shot his girlfriend to death have surfaced on the web ... and they could prove to be crucial pieces of evidence in the runner's defense.

The pics were taken from outside the bathroom door in the Blade Runner's South African mansion ... and show two bullet holes in the bathroom door ... along with a pool of blood by the toilet ... and a blood trail leading to the stairs.

Another pic shows blood drops on the stairs ... where Oscar says he carried Reeva while trying to call for help.

Oscar admits he shot and killed Reeva Steenkamp on February 14 ... but insists it was an accident.

In fact, Pistorius told investigators he grabbed his gun and fired 4 shots into the bathroom that night ... but only because he thought an intruder snuck into his house and was hiding in the toilet. The holes in the door could back Oscar's defense ... that he truly didn't know who was in the bathroom when he opened fire.

Of course, the person in the bathroom was Reeva -- who ultimately died from her wounds. Oscar was arrested and charged with murder.

Here's a glowing Kim Kardashian in the middle of nearly flashing her pregnant goods in Santa Monica on Wednesday (left) -- and the now infamous and controversial JCPenney tea kettle (right).

All hail, Kim Kardashian.

A wardrobe malfunction turned Kim Kardashian into the brunette Marilyn Monroe.

While walking around Santa Monica in flats on Wednesday, the pregnant 32-year-old let a breeze get the best of her maternity dress ... and almost flashed more than just her baby bump.

Although she's no stranger to showing off the goods, Kanye West's baby mama recovered in time to make sure the photo was rated PG.

Even when she attempts to keep her maternity style casual, Kim can't help but make a spectacle.'

After all she's been through, Britney Spears really is in great shape.

With a healthy looking head of human hair, a sexy baby blue bikini and a belly piercing left over from her 2001 Dream Within a Dream Tour, the resilient 31-year-old mother of two showed off her sane curves and lucid, taut tummy while cooling off poolside at a Los Angeles area resort with her shirtless average joe boyfriend David Lucado this past weekend.

Unbelievable -- Justin Bieber's white Ferrari has just been pulled over for speeding ... just days after Bieber allegedly tore through his gated community in the same car, terrorizing his neighbors.

Bieber wasn't behind the wheel this time -- the culprit was his good bud Lil Twist ... the same bozo who was driving Bieber's white Ferrari when that photographer was killed earlier this year.

Law enforcement sources tell TMZ ... police pulled Twist over as he roared out of Bieber's gated community in Calabasas ... but they let him off with just a warning. To that we say, HUH?

The person in charge of the President's Twitter account posted this pic today of Barack Obama admiring something on Justin Timberlake's phone.

While they both look spiffy in their suit and ties, we gotta ask ...