Heidi & Spencer

For some unknown reason, a then 17-year-old Pratt was chosen as one of "YM Magazine's" 'Hunks in Trunks' way back in August of 2000.

Back then he was the one with body issues -- telling the mag "I hate my love handles ... I'd prefer a tight six-pack."

This is the second time the delusional 23-year-old has gone under the knife, having already had a nose job and a breast augmentation in 2007.

Unreal.

Moments after Heidi Montag's newest chesticular operation, her assistant went into full panic mode after a camera containing photos of Heidi's bare jumblies went missing during an ambulance ride.

It all went down in November as Heidi was being transported from the hospital where she got the implants to a recovery center via a private ambulance company.

After Heidi was dropped off, her assistant realized a camera containing numerous photos -- mostly showing a topless Heidi during various stages of her new operation -- was M.I.A.

Sources say the assistant called in a red alert to the ambulance minutes after it left the recovery center and ordered the driver to turn around -- but she didn't tell the driver why.

We've learned the person who first became suspicious saw someone being rushed into the house with a pillowcase over his/her head.

Heidi had a boob job recently and is on this week's cover of People magazine -- on newsstands Friday. Typically in these deals (and trust us, Heidi and Spencer made a deal), the magazine demands that the featured person not be photographed elsewhere until the magazine gets a bang for its buck.

So was it Heidi who was being rushed in the house with a pillowcase over her head? Sure feels like it.

UPDATE: We've just been told by cops that no crime was committed. Someone did indeed see what appeared to be a kidnapping. The guy who was cuffed and detained by cops was released and went back inside the house.

The LAPD received a call for a "possible kidnapping" at the Los Angeles home of Heidi and Spencer Pratt ... sources tell TMZ.

A witness at the scene tells TMZ police blocked off the street outside of Speidi's house, helicopters are flying above and cops with guns drawn are yelling at someone to come out of the house.

Neighbors tell us ... it looks like a cop show. Police are swarming the area. Someone from the helicopter was on a loudspeaker saying, "Man in the black shirt. Come out of the house."

Several cops jumped the fence and went toward the house.

A man has been arrested and is in the back of a police car. The man is a white male, brown hair, medium build, wearing blue jeans and a black shirt.

We have a cameraman at the scene who says this does not look fake.

Cops are now taking the cuffs off the man and are talking with him.

Story developing...keep refreshing the page.

According to documents obtained by TMZ, the day the music died was November 18, 2009 ... when Pratt was declared the humble owner of "King Spencer Music."

Pratt was granted the name for a filing fee of $23 -- which is ironically the same price as a pair of Aearo Peltor Low Profile Folding Ear Muffs.

We smell a stocking stuffer!!

Last week, Spencer went on the "Jojo, Reagan and the Mix Morning Show" on the radio and claimed that Heidi's unforgettably bad performance on this year's Miss Universe pageant was the most watched TV event of all-time. Well, like everyone else, the DJs didn't believe him. They did their research and found out that Princess Di's funeral was indeed the most watched. By about 1.5 billion people. So, they want their money.

Not so fast, claims Spencer. He tells TMZ he re-listened to the tape, and that he said it was the most watched "performance" of all-time ... not "event." Apparently, Princess Di's funeral doesn't count as a performance ... despite the fact that Elton John performed.

Nevertheless, Pratt believes he won the bet and wants his money. In fact, Pratt tells TMZ he's going to send his bodyguard Big D to the station to collect the cash. Note to DJs -- we know Spencer will do anything for fame, we can only imagine what he'll do for money. Pay the dude.

The hosts of "Jojo, Reagan and the Mix Morning Show" are demanding Pratt cough up the $1,000 he bet them on Friday morning, when he claimed Heidi's performance on the Miss Universe pageant this year was the most watched television event in the history of time and space.

Jojo and Reagan tell TMZ they did their homework, and although the pageant was watched by an estimated one billion people (who knew?) ... Princess Diana's funeral was viewed by 2.5 billion.

And, according to a third grader ... 2.5 billion > 1 billion.

Jojo and Reagan want Spencer to pay up but tell TMZ they don't know how to get in touch with him to let him know. So ... ARE YOU LISTENING SPENCER????

Thankfully, there are no plans for "Jon & Kate Plus The Hills" to go into production.

Here's each star's salary per episode, according to TheDailyBeast.com:

-- Lauren Conrad, who was guaranteed the highest salary on the show during her stint, earned $125,000
-- Audrina Patridge, "Lo" Bosworth, and Heidi Montag each got $100,000
-- Kristin Cavallari -- who replaced Lauren Conrad this season -- earns $90,000
-- Spencer Pratt earns $65,000
-- Brody Jenner earned $45,000

Interestingly, Heidi is showing more in this photo than in that non-nude spread in that magazine her husband's reading.

Heidi Montag is scheduled to perform at tonight's Miss Universe pageant in the Bahamas, but pageant production staffers are taking bets as to whether or not it will actually go down -- because she's just that bad!

Sources tells us pageant peeps are concerned that Heidi just can't pull it off. We're told "she's lip-syncing and can't remember the lyrics" (to her own song!!!), "looks like a trainwreck," and "she can't dance."

But she's got Jesus on her side, so we're sure it will turn out just fine.

UPDATE: From the mouth of Spencer -- "The allegations by certain production staffers saying that Heidi is not going to perform are 100% false. She will perform live tonight and she is an exceptional dancer."

UPDATE 2: A source at NBC, which is airing the pageant, says Heidi isn't as bad as producers were secretly hoping she'd be. We shall see ...

The only thing X-rated about Heidi Montag's upcoming Playboy spread is the X-pletive you're going to scream when you realize she's not naked in any of the SIX PAGES of photos.

Sources close to the barely PG-rated photo shoot tell TMZ, the magazine was under strict instructions when shooting Montag -- "No nipples, no vagina, no ass."