Levi Johnston -- No Palin, No Gain
We're not sure if he's gonna show his front or backside, but one thing's certain: Levi Johnston wants to make sure both sides look good for his upcoming Playgirl spread just in case.
Johnston's handler tells us the 19-year-old father of one is preparing for the shoot by hittin' the gym hard -- at least six days a week for the last three weeks -- with the help of a newly hired personal trainer.
Levi agreed to pose for Playgirl last month for an undisclosed amount ... but the real question is what he's willing to bare.
We'll find out soon enough -- the photo shoot happens sometime this month.
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Anderson Cooper Has Got Major Pull
Looking completely jacked up, CNN host Anderson Cooper pumped up his muscles even more at a gym in NYC on Monday.
Anybody wanna spot the 42-year-old silver fox?
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Hot Girl from '30 Rock' in a Bikini
The hot girl from "30 Rock" was in at the Fontainebleau Hotel in Miami this weekend -- and fortunately for all of us, she decided to rock a teeny tiny bikini. There are more than 40 pictures in this gallery .... enjoy!
Ryan Seacrest in the Buff
Ryan Seacrest is a bicep-ual.
The 34-year-old media mogul showed off his ripped and pumped up arm while at LAX on Thursday.
With all his 83 jobs, how the hell does he find time to workout?!
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Jake Gyllenhaal -- The Ripped One
With his rippling biceps in full display, Jake Gyllenhaal worked up a sweat while listening to music on a jog through Pittsburgh on Wednesday.
The buff 28-year-old really knows how to pump up the jams.
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Name That Booty!
Sophie Monk's Wet Suit
With a vacant stare and her lady bits safely stuffed into some sort of geometric multiple piece bathing suit thing, Sophie Monk washed her supple skin in the cool waters of the Pacific in L.A. this weekend.
The only thing more interesting than Sophie's swimsuit ... the tan lines it produces.
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Hey, It's David Crosby ...
Trevor Donovan -- Anatomically Correct
"90210" star Trevor Donovan showed off his perfectly ripped and smooth body at a store in L.A. on Tuesday.
There's a reason why the average teenager doesn't have a physique like his ... because Trevor is 30.
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K-Fat will Become K-Fit -- on Reality Show
Looks like Kevin Federline is tired of all the K-Overfed jokes -- because TMZ has learned he officially signed on to do the next season of "Celebrity Fit Club."
Federleezy has packed on the pounds of late -- see Exhibit XXL above -- but he's on a mission to reduce the rolls. Earlier today, a TMZ employee watched Britney's ex saunter onto the Simi Valley, CA set of the VH1 weight-loss reality show.
As TMZ first reported, Bobby Brown, Nicole Eggert and Kevin's other baby-mama Shar Jackson will also join him in trimming the fat.
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Katy Perry's Stylist: I Frisked a Girl
Katy Perry may have a pretty good gig, but it's her stylist who has the best job E-V-A-H!
While shooting her new video in L.A. yesterday, the 24-year-old got some help getting her breasts realigned.
What school do you need to go to land that position?!
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Sophie Monk -- Like Captain Kangaroo, But Hot
There's something kinda sexy about talking with Aussie babe Sophie Monk about eating kangaroos and keeping koala bears as pets.
Just don't make the mistake of saying she's from New Zealand -- she hates that.
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Kellan Lutz: Mirror, Mirror On the Wall ...
While working out at a Vancouver gym, "Twilight" musclehead Kellan Lutz flexed and posed for his biggest fan ... himself.
Who can blame the pumped up and body hair-free 24-year-old for liking what he sees?!
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Whose Torso?
Kristin Cavallari When Drunk Friends Attack...
This video of Kristin Cavallari has it all: Hot chicks, one sloppy drunk, a girl-on-girl mauling and even a paparazzi turf war.
If KC can bring even an ounce of this excitement to "The Hills," we may actually tune in for once.
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Chris Brown Can Stomach Hard Labor
Being sentenced to 180 days of hard labor appears to really agree with Chris Brown.
While performing his court-ordered hard labor in Virginia on Thursday, the 20-year-old convicted felon went shirtless and showed off his shredded abs.
Looks like Brown is now using his muscle for good.