Britney Spears looks ... different on the cover of Women's Health Magazine, and while many people suspect a Photoshop job -- TMZ has obtained video that shows that's probably not the case.

Sources involved with the photoshoot tell TMZ ... Britney's facial changes can be attributed to a makeup technique called "contouring" ... which accounts for her slimmer nose and more defined cheek bones.

Check out the video ... she looks exactly the same on set as she does in print.

It really is Britney, bitch.

2:50 PM PT --  Kim just copped to the photo edit ... tweeting, "Wait is this really news that I posted a selfie & cropped my daughter out? LOL … Her eyes were closed and I was feeling my look! Can I live?!?!"

Kim Kardashian doesn't like to share the spotlight with anyone, even her own daughter.

KK posted a selfie Sunday night that rather conspicuously cuts off the face of North West ... and the move did not go unnoticed.

Comments on the photo from some of Kim's 23 million followers included:

-- "Seriously you can't even let your own child in a picture with you #selfishness"
-- "Lmao if she loved her child she wouldnt have cropped out the pic"
-- "Narcissism at it's finest"
-- "crop game strongggg, poor North your mom would rather showoff a brick wall than you.....SHAME!!!"

In all fairness, that is a lovely wall.

Mike Vick is like the black Paul Mitchell .. 'cause his black hair brush business is KILLING IT ... with demand for his WaveMasterz products higher than ever ... TMZ Sports has learned.

We broke the story ... Vick and Bow Wow got involved with the company last year after falling in love with the brushes.

Vick ended up buying 40% of the company. Bow Wow got 10%.

And the investment is paying off in a big way ... with WaveMasterz telling us the company is shipping out more than 500,000 brushes this holiday season to keep up with demand.

We're told the company only shipped out 3,000 last year ... when the company was in its infancy.

We spoke with Vick who tells us he's ecstatic about the growth -- saying, "I love the WaveMasterz brush ... it’s why I wanted to do more than endorse the brush, but be a part of this company."

He adds, "Now, we have to make sure the production keeps up with the demand because the response, even as we launch has been amazing."

Karrueche Tran is a single woman -- at least until she gets back together with Chris Brown for the umpteenth time -- but in the meantime, she's flaunting her single body all over Miami.

It's not hard to see why Chris kept going back.

If there's one thing the Internet knows ... it's that Kate Upton in a bikini (and sometimes out of it) is an easy win -- and the folks at Sports Illustrated just rung up another W.

Kate's been getting a ton of attention for her "Game of War" commercials, which seemingly runs during every commercial break of sporting events.

So, S.I. just wanted to remind everyone they have the hottest Upton footage on the planet ... by posting a throwback video to a 2012 photoshoot.

Thank you, S.I.

Justin Bieber hit the bottle a little too hard -- as in the bottle of hair dye -- and he's now emerged as a platinum blond version of himself.

The Canadian pop star, and super-expensive car enthusiast, debuted his new lighter looking locks over the weekend ... during the ribbon cutting ceremony for a West Coast Customs car shop in Burbank, CA.

Whatever you might think of Justin's new 'do, you can rest assured ... Portia de Rossi probably loves it.

Halle Berry says she has the smoking follicle to prove Gabriel Aubry bleached and damaged her daughter's hair ... and the proof is in Nahla's hair brush.

TMZ broke the story ... Halle hauled Gabriel into court, claiming he was straightening and lightening her hair to make her appear white. Gabriel denied using chemicals and said the lightening was from the pool and sun.

Halle submitted documents to the court from Microtrace, a forensic consulting lab. Halle gave them a pink hair brush with strands of Nahla's hair.

The company analyzed the hair and concluded there was evidence it was chemically treated. The lab went on to say the repeated use of chemicals took their toll, writing there was "extensive damage ... likely the cumulative effect of repeated exposure to numerous gentle bleaching treatments."

The judge ruled neither Halle nor Gabriel could mess with Nahla's hair, and based on pics of Nahla and Gabriel from this week ... it looks like her hair is going back to normal.

Gabriel Aubry's night out on the town was really hairy ... courtesy of 6-year-old Nahla.

Gabriel and Nahla dined at a L.A. restaurant, and it's the first time we've seen her since Halle Berry hauled him into court last month, claiming Gabriel had straightened her hair and lightened it to make her look white.

The judge ordered both Gabriel and Halle to leave Nahla's naturally curly hair alone, and it looks like that's exactly what's happening, although a cynic might say Gabriel is trying to manually do the job again.

It's one of the most famous Yankees rules ... NO BEARDS DURING THE SEASON!!!

But with star pitcher CC Sabathia, who's growing out his whiskers in the off-season, we had to ask the 34-year-old if he was planning to rage against the machine this year ... and fight to keep his face warmer when it's time to put on the pinstripes.

Don't worry Steinbrenners, Sabathia told us he's gonna play by the family rules ... even though he likes his new scruff.

Taylor Swift performed at the Victoria’s Secret Fashion Show along with two unexpected friends …her yabos! And while everyone agrees they looked great -- don't get used to them.

There’s some 'Secret' deceit going down here.

Blake Lively doesn't need a sexy black dress for slimming effect -- 'cause even with a big ole bun in her oven ... she's a total smoke show.

The ex "Gossip Girl" flaunted her belly at a L'Oreal event in NYC last night ... creating a dilemma for all those fans who drooled over her bod long before Ryan Reynolds knocked her up about 5-6 months ago.

Even Taylor Swift's haters can't hate hate hate what she just unveiled at the Victoria's Secret Fashion Show ... serious cleavage!

For once, there was nothing prudish about the 24-year-old's outfit on stage in London. Instead, she opted for some sexy lingerie, and a Wonderbra-like lift, during her performance at the show.

A Vicky's Secret rep tells us the nightie/bustier thingy clinging to Swift was custom built for her bod.

So, welcome to Whapperville, Taylor -- and check out all the V.S. Angels who shared the stage with her.

Kourtney Kardashian had the stomach to pose naked for Dujuor magazine.

Kourtney -- who is ready to pop with her third kid -- tried to one up Kim. When you break it down limb by limb ... she really looks amazing ... shades of Demi Moore.

Your move, Khloe.

Watch your back, Kim ... Khloe is coming for you.

Khloe Kardashian continued her all out assault on her sister's claim to the most colossal culo in Calabasas ... as she was spotted leaving a private gym Tuesday afternoon.

The spandex-clad profile is oddly similar to the one Kim showed off just a few months back.

The question is ...