Hot Bodies

20-yr-old Kate Upton looked like she was chugging beer at a baseball game -- but she's denying it. So, let's investigate the matter by rolling video of Kate getting hosed down in a bikini! Couldn't hurt, right?

Colin Farrell turned up the heat in Rio by showing off his lean, ripped, tatted up torso as he walked around shirtless on Wednesday.

Australian model Kasia Zachwieja is THE next hottest thing -- according to one TMZ staffer, anyway. But once you see her liberal bra policy, and hear her talk ... we're betting you'll agree.

"Modern Family" hot mama Sofia Vergara celebrated her big 40th birthday on Tuesday by rocking a sexy bikini in Mexico ... and flashing what is reportedly her new giant engagement ring.

Sofia's on-again-off-again businessman boyfriend Nick Loeb reportedly popped the question this week and gave her the huge bling during their vacation with pals on the Riviera Maya.

Sofia -- who dated Tom Cruise back in 2005, before the whole Katie Holmes thing -- has a son from a previous marriage.

Jessica Alba let all her bronzed gorgeousness hang out in a sexy two-piece bikini while soaking up the sun in Italy on Tuesday.

Just like Scarlett Johansson, the 31-year-old mother of two can definitely stomach the European heat.

No shocker that bikini-clad Scarlett Johansson had a guy right by her side -- moth to a flame, dude -- but is he a bodyguard, a boyfriend ... or just damn lucky? We're going with C.

It's no secret what Scarlett Johansson's super powers are ... looking ridiculously hot in a sexy wet bikini.

The 27-year-old showed off her Black Widow curves while on a yacht in Italy with a super buff man friend on Monday.

Kate Hudson took a holiday from making all those awful romcoms to bask her mother-of-two curves in a sexy black bikini in Greece on Thursday.

Despite "Alex and Emma," "Raising Helen," "You, Me and Dupree," "Fool's Gold," "My Best Friend's Girl," "A Little Bit of Heaven" and "Something Borrowed," the fit 33-year-old has a great body of work.

And now ... some photos of Hayden Panettiere in a really small, wedge-tastic bikini ... because it's summer.

Hayden hit the beach in Cabo San Lucas, Mexico this week ... showing off her tiny physique as she tanned by the pool.

Seal's officially done mourning the death of his marriage to Heidi Klum ... 'cause the singer has moved on to a smokin' hot brunette who looks damn good in a bikini ... and TMZ has the pics.

Just 3 months after Heidi filed for divorce, an extra-sweaty Seal was spotted on a yacht in Italy this week ... gettin' all kissy kissy with a mystery babe after a quick workout session on the deck.

There was cuddling ... there was smiling ... but there was no sign of Seal's wedding ring.

TMZ broke the story, Heidi decided to break off the marriage because she got sick of Seal's explosive temper. The couple later released a joint statement saying they had simply "grown apart."

Meanwhile, Heidi ain't lookin' so bad either ... and made sure the world knew it on July 4th ... when she tweeted out this photo of her insane supermodel physique.

Damn.

Mama mia! Sean Kingston loves Mario Kart so much ... the singer tattooed a giant freaking memorial to the video game on his arm ... and the pics are kind of awesome.

King posted the photos on Twitter the other day -- showing his new suped-up Mario Kart inkjob in progress inside his L.A. home ... courtesy of a local tattoo artist named Peter Koskela.

We're told the tat cost Sean a total of $1,250, and took 5 uncomfortable hours to complete.

File it under things Sean will probably regret in 20 years.

Aw-wawawawawawawa.

In honor of Leonardo DiCaprio's latest supermodel conquest, Erin Heatherton -- and her bikini -- we're saluting all of his perfect 10 beachmates ... and there have been MANY!

She ridonkadonkulous!

Victoria's Secret supermodel Candice Swanepoel is used to walking around in her underwear ... and basically did that by wearing a ridiculously sexy mismatched tiny two piece swimsuit in Miami Beach on Wednesday.

Ladies and gentlemen, it's that time of year ... when Leonardo DiCaprio trots out his super-hot bikini-clad supermodel girlfriend and reminds you that it does not suck to be him.

This time, Leo was out in Hawaii with his 23-year-old Victoria's Secret model plaything Erin Heatherton (33-24½-34).

Leo's pal Tobey Maguire was also hanging out on the beach.

Just to remind you -- before Erin, Leo was romantically linked to Gisele, Bar Refaeli, model Kristen Zang, model Emma Miller, Blake Lively and probably more hot chicks we've never even heard about.

While bronzing his already golden muscled skin on a yacht in St. Tropez on Monday, soccer stud Cristiano Ronaldo had more important things to do than pay attention to his ridiculously hot bikini clad girlfriend Irina Shayk ... like take a nap.