Beauty

In just a matter of hours, Khloe Kardashian went from a makeup-free natural woman to a polished and shellacked glowing orange babe in Miami.

Early on Wednesday, the sleepy and blemished 28-year-old soon-to-be "X Factor" host was spotted au naturel heading to the gym ... but just a little while later Kim's little sis was almost unrecognizable.

Her transformation -- refurbished weave, spray tanned skin, and the girls pushed up and into a form fitting strapless dress -- was nothing short of awesome.

As if he wasn't talented enough, opera singer Andrea Bocelli showed off how fearless he is by in-line skating in Tuscany, Italy on Wednesday.

The 54-year-old tenor -- who lost his sight at age 12 -- was spotted rolling alongside his wife as she rode her bike.

That's how he rolls.

"The Voice" judge Christina Aguilera (left) -- and her Dirrty era extensions -- showed up to the American Music Awards nominations in L.A. on Tuesday ... looking like the long lost family member of Wynonna Judd Brooke Hogan (center) and Linda Hogan (right).

Hulk may have more 'splaining to do.

While underneath a huge umbrella, Kim Kardashian and Kanye West stayed dry during a Miami downpour on Monday ... and grabbed each others' badonkadonks.

Kim was prepared for the showers by wearing her ginormous rain shades, a practical leather mini-skirt and waterproof open toed heels.

Looking even more emaciated and gaunt than before, a frail Matthew McConaughey was barely recognizable as he -- with the help of his mother Kay -- left a church in Austin this weekend.

As TMZ previously reported, the normally buff and shirtless 42-year-old is wasting away to play Ron Woodruff in the movie "The Dallas Buyer's Club," the true story of a man who contracted HIV through drug use in the '80s and has to smuggle life-saving medications from Mexico.

Jennifer Livingston says she has no hard feelings toward the "bully" who wrote in to her TV station and called her obese ... telling TMZ, "I hope people kinda leave him behind and leave him alone."

Livingston -- a news anchor at CBS WKBT in Wisconsin -- arrived to L.A. this weekend to appear on the "Ellen" show ... where she'll explain why she fired back at a viewer who said she was a bad role model because she doesn't promote a healthy lifestyle.

Jennifer went on the air and blasted the guy ... admitting she is overweight but saying, "You don't know me. You are not a friend of mine. You are not a part of my family ... I am much more than a number on the scale."

Pregnant Man Thomas Beatie has passion in his pants and he ain't afraid to show it ... dressing up as Redfoo from LMFAO for Halloween this year -- and his costume's incredible.

Thomas tells TMZ, "I've pretty much been obsessed over the last month trying to get my Redfoo costume together" -- a massive waste of time because the costume's literally just a t-shirt, animal print stretch pants, and his GF's old Richard Simmons wig.

Thomas adds, "I've been Googling the moves, so I plan on being in true character come Halloween."

FYI -- if you're wondering what the black bars are covering ... let's just say Bush wasn't just the 41st President of the United States.

Thomas says he tried reaching out to Redfoo on Twitter to see if the LMFAO rapper would want to do a costume trade -- suggesting Redfoo could dress as "The Pregnant Man" by stuffing a pillow under his shirt.

Mary Hart still has it going on.

Here's the 35-year-old former "Entertainment Tonight" host back in 1986 (left) -- and 36 years later, the 61-year-old former Miss South Dakota at an event in L.A. this week (right).

She's the former hostess with the mostess.

It was a blonde trifecta as Amanda Seyfriend, Emma Stone and Dianna Agron glammed it up at the Miu Miu fashion show in Paris on Wednesday.

Question is ...

Mariah Carey got a full police AND umbrella escort on her way out of an "American Idol" photo shoot in Baton Rouge yesterday -- 'cause the only thing more harmful than angry rappers are those damn UV rays.

Carey had told Babwa Wawa that she bulked up her security team after Nicki Minaj allegedly threatened to shoot her with a gun during their blowup earlier this week ... and Thursday she proved she ain't messin' around.

Sources tell us ... Mariah and Nicki both participated in the shoot -- and even posed for pics TOGETHER. We're told the shoot was peaceful, but it's clear the hatchet is not buried.

Tomorrow, the gang has another round of auditions ... and that's when tensions really start to heat up.

Here's the one reason you should still be watching "Glee" ... new cast member Dean Geyer's yoked body.

Flashing his ripped and hairless acting muscles, the 26-year-old skateboarded shirtless through Santa Monica on Wednesday.

Now this is something to sing and dance about.

Christina Aguilera's massive boobs and Hillary Clinton's steely gaze proved once and for all that NO ONE -- male or female -- can ignore boobs on a platter! Well played, Madam Secretary.

Nicki Minaj and "Her f*cking Highness" Mariah Carey have been ferociously going at it on the set of "American Idol."

Question is ...

Hillary Clinton is clearly impressed with Christina Aguilera.

The two got together at the 2012 George McGovern Leadership Award Ceremony in Washington D.C. on Wednesday for their work in helping feed starving children throughout the world.

Clearly, Christina has what it takes to make sure no child ever goes hungry.

Minka Kelly and Chris Evans proved they're more than just friends by swapping spit outside a restaurant in Studio City on Monday.

The sexy couple -- who dated briefly in 2007 -- have been spotted hanging out together in recent weeks, but this is the first time they've gotten hot and heavy in public.

Prior to hooking up with Captain America, 32-year-old Minka broke up with her longtime NY Yankee boyfriend Derek Jeter last year.

She really knows how to play the field.

Here's Justin Bieber's mom Pattie Mallette doing press for her new memoir "Nowhere but Up" in NYC recently (left) -- and Patti Stanger from Bravo's "The Millionaire Matchmaker" last year (right).

Only one is 36.