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Whatever Oscar winner Russell Crowe is doing it appears to be working.

The 47-year-old looked a lot fitter and leaner in Sydney on Monday (left) than he did back in L.A. six months ago (right).

A beautiful mind ... and body.

Croatian soccer star Darijo Srna soaked his smooth, ripped muscles in baby blue man-panties while on the beach in Barbados on Monday.

The 29-year-old has a lot of support.

Will Smith showed off his latest blockbuster ... his newly sheared nearly bald head in Miami last night.

The 43-year-old is pretty smooth.

"Step Up 3D" star Sharni Vinson showed off her alarmingly slender bikini body on the beach in Sydney this weekend.

The 28-year-old -- who is currently dating "Twilight" muscleman Kellan Lutz -- could really use a cheeseburger about now.

So, we gotta ask ...

Proving not all NBA marriages are in shambles, Khloe Kardashian played cheerleader by rooting for her hubby Lamar Odom in his first game with the Dallas Mavericks on Sunday.

Odom was definitely impressive with his new team ... putting up 14 points and 7 rebounds in just 23 minutes.

Angelina Jolie, Brad Pitt, and all of their various children hit up "Michael Jackson: The Immortal World Tour" in Las Vegas last night.

Amanda Knox did a little Christmas shopping in Seattle yesterday, hitting up a local Salvation Army.

For a second it seemed to be 2009 all over again, as once famous famewhores Heidi Montag and Spencer Pratt (Speidi, anyone?) pretended to not know they were being photographed as they did something -- in this case, act all lovey dovey while skiing down a mountain -- on Thursday.

Back home from her whirlwind world tour, Britney Spears has decked the halls of her brand new L.A. mansion with boughs of holly ... and tons and tons of colorful Christmas lights.

The 30-year-old singer has spared no expense to get into the festive light-everything holiday spirit -- casting a bright glow across her stuffy ultra-exclusive San Fernando Valley neighborhood.

All Brit Brit really wants for Christmas is ... a huge electric bill. Clark Griswold would be proud.

Fa la la la la la la la laaaa.

"Modern Family" hot mama Sofia Vergara left little to the imagination by rockin' a pair of see-through black tights and showing off her bootyful side ... and front ... while heading to her SUV in L.A. on Wednesday.

It's been over two months since his relationship with Blake Lively ended, but Leonardo DiCaprio was spotted hanging out in Sydney on Wednesday with a new blonde lady friend who looks a lot like his gorgeous ex-girlfriend Bar Refaeli.

The 36-year-old has gone back to the super hot drawing board.

Verne Troyer showed off his bowling skills in Belfast, Northern Ireland yesterday ... at an event for a local youth charity.

The 42-year-old actually bowled a strike in this pic and proved he's in a league of his own.

Robert Wagner refuses to ignore his history with Natalie Wood -- despite the fact he's a person of interest in a renewed investigation into her death.

Wagner made an appearance at a movie theater in Florida last night -- and on the way out, he agreed to sign a classic photo featuring himself with the actress who mysteriously died after the two had an argument on a boat back in 1981.

It was a cold rainy day in L.A. yesterday and single lady Jennifer Love Hewitt tried to find some companionship with the self-help book "Why Men Love Bitches: From Doormat to Dreamgirl -- A Woman's Guide to Holding Her Own in a Relationship."

In the past, the 32-year-old has been linked to Carson Daly, John Mayer, Ross McCall, Jamie Kennedy and most recently an actor named Jarod Einsohn.

J.Love's ready for the next chapter of her life.

Looking a tad less confident than he did on TV, former "MacGyver" hunk Richard Dean Anderson, 61, got stuck in a bit of a jam when his car broke down in Malibu on Monday.

"Miss Venezuela 2002" Aida Yespica was desperately in need of some support earlier today -- hitting Miami Beach in a polka dot bikini so small ... it defied the laws of physics.