Troy Polamalu THE PROOF HEAD-SHAVING VID WAS HOAX

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His teammates appeared to have pulled the classic Jackass head-shave prank on his million-dollar hair -- but Pittsburgh Steelers wrecking ball Troy Polamalu tells TMZ, it was all FAKE ... his locks are still intact.

BONUS: Troy also drops a serious hint about what team he'll sign with once his contract expires next year ... watch the clip!

Jake Gyllenhaal Strapped and PACKING HEAT

Looking tough with his shaved head, Jake Gyllenhaal brought out the big guns to portray a cop on the set of his new flick "End of Watch" in L.A. the other day.

Jake is definitely bulletproof.

Kat Von D I'M KEEPING THE JESSE JAMES TATTOO

Kat Von D lives her life with "no regrets" -- which is exactly why she's NOT removing a big ass tattoo of Jesse James' face from her ribcage ... DESPITE the end of their relationship.

Kat tells TMZ, "I love my tattoo" -- adding, "It's more than just a portrait, it has a lot of meaning."

FYI -- the tat is a school picture of Jesse ... from when he was in the FIFTH GRADE.

Kat -- whose show "L.A. Ink" premieres tonight on TLC -- also has a tattoo of another ex-BF somewhere on her body ... and she tells us, that's not going anywhere either.

Dedication.

THE PREGNANT MAN I WAS A FEMALE BODYBUILDER

Pregnant man Thomas Beatie has a buff body now (right), but he's no stranger to rock hard physiques since he was once a female bodybuilder (left) ... and TMZ has the photo to prove it!

Back in 1999 before becoming a transgendered man, Beatie was in top form and posing competitively in a woman's hot pink bikini and a serious tan that would make Snooki proud.

While now back in decent shape after giving birth, the father of three appears to have transitioned effortlessly from pumping iron to pumping, er, milk.

Jake Gyllenhaal Wet & Shirtless

While in Hawaii for his Dad's wedding this weekend, super sexy Jake Gyllenhaal cooled off his ridiculously hot and buff body at the beach in Oahu.

We're told Jake's sister Maggie Gyllenhaal was there too.

Katy Perry Starred on 'One Tree Hill'?

Here's a blonde Katy Perry in NYC last weekend (left) -- and former "One Tree Hill" star Hilarie Burton (right).

One of them had a child in 2010 with former "Grey's Anatomy" star Jeffrey Dean Morgan.

We're just sayin'.

ORBIT GUM GIRL I SEE LONDON, I SEE FRANCE ...

Vanessa Branch -- the chick from the Orbit gum commercials -- showed off a different side (and front ... and back) than we're used to seeing by wearing an exposing sheer dress in NYC on Tuesday.

Fabulous!

UPDATE: Branch's rep tells us the model wasn't just aimlessly walking the street in her racy outfit ... the pics were taken during a photo shoot for JNBY Clothing.

The Pregnant Man RIPPED AFTER DROPPING BABY POUNDS

Thomas Beatie -- the former woman turned transgendered pregnant man -- has not only lost all the baby weight that comes from having three children ... he's more CUT UP than an umbilical cord!

The blonder Beatie showed off his newly buff chest, bis and abs while in the pool with one of his kids in Arizona on Tuesday.

Oh daddy.

There She Is ... Ms. Alabama Nursing Home

Move over Donald Trump and Miss USA contestants, because the lovely Ms. Felma Schrimshire is the winner of this year's highly coveted pageant title, Ms. Alabama Nursing Home 2011.

Felma -- who is 100-years-young -- beat out 74 other contestants and while she did not have to endure talent or swimsuit competitions, they all underwent 15 minute interviews before the crown was awarded to Schrimshire.

As part of her illustrious duties, Felma will travel to various nursing homes and community events.

Congratulations, Ms. Alabama Nursing Home!

Kate Beckinsale Double the Hotness

Just in case one Kate Beckinsale wasn't hot enough, the "Total Recall" star hung out with her identical stunt double on the movie's Toronto set on Monday.

Being as gorgeous as Kate can be dangerous.

Adriana Lima -- Slitherin' Hot in a Bikini

Supermodel Adriana Lima turned the Miami seashore into a catwalk by rocking a snakeskin bikini on Monday.

It's no Victoria's secret that the 30-year-old is smokin' hot.

Zack Morris Shirtless!

It's been 18 years since "Saved by the Bell" went off the air, but Mark-Paul Gosselaar proved he can still make the girls at Bayside High swoon by going shirtless on the beach in Orange County this weekend.

Believe it or not, Zack Morris is 37-years-old.

Dolly Parton Raps ... About Her Gigantic Breasts

For some reason, Dolly Parton decided to bust a RAP during her concert in L.A. this weekend ... inspired by Queen Latifah ... and boobs.

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Here's a sample of Dolly's rhymes:

[on the subject of Queen Latifah]
"She's the queen of her own hood ...
but I'm the queen of Dollywood!"

"I don't hip and I don't hop ...
I'd black both eyes with this big top."

"I know the Queen has got 'em too ...
... but she don't work 'em like I do!"

What a way to make a livin'.

Thanks to our friends at ConcertConfessions.com for the footage.

Ben Affleck's Hairy Situation

Taking a cue from Zac Efron's old 'do, Ben Affleck debuted some new blown out and freshly flat ironed longer locks in Santa Monica this weekend.

It's amazing what a new cut will do to a 38-year-old.

JoJo vs. Demi: Who'd You Rather?

Former teen idol JoJo, 20, and rehabbed "Camp Rock" sweetie Demi Lovato, 18, were bosom buddies at the same event in Hollywood the other day.

Question is ...

Vienna Girardi -- Will You Accept This Nose?

Vienna Girardi's stint on "The Bachelor" has landed her some work ... on her nose.

After tweeting about getting rhinoplasty yesterday, the 25-year-old showed off her bandaged schnoz at LAX on Friday.

Nice job.