Hot Bodies

10:45 AM PT -- It now sounds like the guy who said "fat bitch" is so far back there's no way Britney could have heard him. So the question ... what happened that pissed her off so much? Several sources who work on the show tell TMZ, they believe Britney was reacting to a comment someone made in the audience, but they don't know what was said.

Check out the video closely. It looks like the music may have started late ... so that's a possible trigger as well. But no one is saying definitively.

Britney Spears stood up for herself Wednesday night during her show, when someone in the audience apparently called her a "fat bitch."

A guy standing next to the mic says "fat bitch", and you can clearly hear Britney say ... "f***ing asshole."

It's interesting on several levels. Critics of her show say she walks through her performance like a robot, but this clip clearly shows Britney's antennas are up.

Plus, her mic was on ... during a song!!!

And she doesn't take crap from random people. Are you listening Sam Lutfi?

Selena Gomez didn't pull any strings in Puerto Vallarta ... dammit.

Biebs' former squeeze was showing off the goods during her Mexican vacay ... sporting a double-stringed bikini bottom thingy (we know fashion).

There's not a ton of material to her ensemble, but what there is -- is definitely working overtime to cover the 22-year-old's assets. Things are getting thick down in Mexico.

Sad day for the fashion world, and an even sadder one for the guys-ogling-hot-chicks world -- Gisele Bundchen has walked her final runway ... at 34.

The modeling legend -- whose career earnings are reportedly near $400 million -- hit the catwalk for Colcci during São Paulo Fashion Week in her native Brazil. She's gonna keep working in the modeling biz, but says she's done strutting for pay.

Hubby Tom Brady, her parents and sister all sat front row for the show. Tom posted a disgustingly drippy love letter to his missus about her accomplishments and inspiration, and blah blah ... but best of all he ends it with, "I can't wait to see what's next. I love you. ?#‎GOAT?"

As long as we remember her in our hearts, she'll never really be gone. Plus, there's still old Victoria's Secret catalogs.

You can only see part of Gigi Hadid at Qatar's main airport, because a vigilant team is on hand to cover-up pictures of her erogenous zone.

We found this really interesting. Magazines that come into the country -- mostly from the UK -- are scrutinized by the government for "excessive revelations of bodily parts."

The team has trusty magic markers ready to black out anything deemed offensive. If the pics really cross the line, the offensive images are ripped out entirely.

We're told the team actually roams the kiosks for new material. Passengers say they can smell the fresh ink.

A passenger at Qatar's Hamad International Airport landed Tuesday and saw another pic blacked out ... this one showing Bethany Hamilton, a professional surfer.

Also interesting ... the cleavage portion of the photos are untouched.

Qatar is one of the more progressive countries in the Middle East. Many others ban such pictures altogether.

The day after model Sarah Stage took a ton of flak for looking like the fittest pregnant woman in history ... she squeezed out a baby wayyy bigger than anyone with eyes would expect.

Stage gave birth Tuesday afternoon to James Hunter -- 8 lbs. 7 oz. and 22 inches long. Totally normal size for a newborn, and maybe even a little large ... considering Mom posted a pic Monday that looked like she'd just had a big lunch.

Stage's pregnancy was so easy, she even went out to dinner with pal Melissa Molinaro on Sunday night ... still looking like your typical rail thin L.A. chick.

Guys wanna get her pregnant, women wanna BE her pregnant.

Rihanna went out to dinner Tuesday night in Santa Monica and it's a safe bet whoever was sitting across from her had a hard time keeping eye contact.

RiRi hit up one of her fave spots, Giorgio Baldi -- where no shirt and no shoes equals no service -- but no bra means ... you're V.I.P.

Courtney Stodden had a serious wardrobe malfunction ... her top didn't fly off as planned, so she just jiggled it away.

It's so thirsty it's almost endearing. Courtney was throwing a football in Marina del Rey Monday and you see the disappointment in her face when her bikini top misses its cue.

Watch the video -- in fact watch it several times -- as Courtney vigorously shimmies it off.

Once it falls, you hear her feign shock in her finest Valley "Oh my Gaud!!!"

Even if you're not a fan, she definitely deserves the boobie prize for this stunt.

The guys may have underachieved last year ... but Kansas City Chiefs cheerleaders NEVER disappoint -- especially when they're decked out in bikinis.

Here's some video of the squad hangin' out in St. Lucia -- where they shot their 2015 calendar -- doing cheerleaderish things ... in slow motion.

UFC ring girl Arianny Celeste says ... just because you don't have a HUGE booty, doesn't mean you don't have a great booty ... and she's got the pics to prove it.

Celeste just posted a blog explaining how people with "perky" butts can still steal the spotlight in a bikini these days ... and she makes a pretty compelling visual argument.

"We live in a world now where it’s all about the booty! I like to work out regularly, but let’s face it, I’ll never have a huge booty! Mines perky and I like it that way," Celeste writes.

Arianny says the key to showing off your physique by the pool starts with picking the right suit.

She chose wisely.

How do you feel about belly button tattoos on guys?

UFC star Conor McGregor is clearly a fan ... and inked a giant tiger head around his innie while hanging out in L.A. this week.

Unclear why Conor chose the tiger ... but he's clearly proud of it.

In fact, he tweeted, "If you see the Tiger it's too late. You're food."

Hobbes would be proud.

Coachella hotness is not just for kids ... check out exhibits A and B.

EXHIBIT A: Alessandra Ambrosio brought the girls to the concert Saturday and left her kids at home. She's 34, and lookin' mighty fine.

EXHIBIT B: Fergie showed off a nice piece of lace as she had fun in the sun. Again, 40 looks amazing.

"The Bachelor" star Chris Soules is definitely no 40-year-old virgin ... but he did a damn good impression by getting his chest hair torn out for his next performance on "Dancing With the Stars."

We're told Chris will be channeling Hercules in the dance number, and his partner Witney Carson suggested he clean up that Soules Patch ... of course, she volunteered to wax on, wax off.

We're told he'll wear a skirt to show off his man-gams, and nothing above to showcase his new, smooth chest. We doubt fiancee Whitney Bischoff will complain.

Kendall Jenner is painfully white, and we're not talking skin tone.

Check her out doing what looks at first like the Monster Mash Friday at Coachella. The moves changed, but not necessarily for the better.

Kendall was there with some chick friends ... no trace of Justin Bieber.

This is Rumer Willis leaving a "Dancing With the Stars" rehearsal -- or more accurately ... it's Rumer's perfect ass leaving rehearsal.

On fleek ... comes to mind.

Rumer's already taken the MVA (most valuable asset) on this season of 'DWTS' -- and a lot of people who give a crap about that show ... think she's a lock to win the mirror ball thingy in the finale.

Don't all guys sit around the house like this???

Here's soccer superstar Cristiano Ronaldo ... striking a very spread eagle-ish pose to promote his new CR7 underwear line.

According to the press release, Ronaldo's new undies are supposed to be super soft thanks to "superfine microfiber" material.

Here's international supermodel Irina Shayk ... showing off her INSANE physique during a beach trip in Cancun, Mexico.

The 29-year-old's bikini top battled heroically to stay in position as Irina splashed around in the surf ... and while there were several close calls ... it ultimately emerged victorious.

Of course, Shayk recently broke things off with her longtime soccer superstar boyfriend Cristiano Ronaldo -- who's gotta be kicking himself right now ... or banging someone else.