Beauty

Robin Roberts returned to the NYC set of "Good Morning America" this morning -- the first time since undergoing a bone marrow transplant surgery -- for a private "GMA" test run to see if she's physically ready to come back to the show.

Just last week, Roberts explained that she would be doing a series of doctor-approved "dry runs" before officially re-joining the show.

"My doctors want me to see how many people I actually come in contact with," Roberts said ... "How my body reacts to the stimulation, that's code word for stress, of being in the studio environment."

She added, "My skin is very sensitive and so we have to see how it reacts to the studio lights. My vision is still a little blurry from the treatment. All of this is getting better day by day so that is the next step."

Last year, 51-year-old Roberts was diagnosed with MDS -- or myelodysplastic syndrome -- a disease of the blood and bone marrow that was once known as preleukemia.

Like Jake Gyllenhaal and Shia LaBeouf before him, you can now add Hayden Christensen to the list of young Hollywood actors trying to butch up their boyish looks with grizzly beards.

The barely recognizable 31-year-old "Star Wars" hunk has turned to the hipster dark side and showed off his long scraggly face whiskers while grabbing some juice in L.A. on Tuesday.

Attack of the clones.

Serena Williams may have lost to Sloane Stephens at the Australian Open, but her sister Venus Williams has clearly won the trophy ... boy.

Venus' hot young buff 24-year-old Cuban model boyfriend Elio Pis was spotted flaunting his lean smooth body at the beach in Miami this week.

She may be a cougar, but it was all about the leopard print getup and ridiculously hot leather thigh high stiletto boots when Jennifer Lopez hit the streets in NYC on Tuesday.

First Lady Michelle Obama rocked a bright red Jason Wu gown to the 2013 Inaugural Ball last night -- a stark contrast to the white Jason Wu number she wore to the ball back in 2009.

Is FLOTUS better off 4 years later?

Great news for Brent Musburger ... 'cause Katherine Webb (the chick he ogled during the BCS championship game) has signed a deal to star in a new reality competition show ... which requires her to spend A LOT of time in a bathing suit.

TMZ has learned Miss Alabama USA 2012 -- aka the hot girlfriend of Alabama QB A.J. McCarron -- will be a contestant on the upcoming ABC show "Celebrity Diving."

We obtained pics of Katherine on the L.A. set today with some of her co-stars ... a cast that includes Detroit Lions badboy Ndamukong Suh, Kareem Abdul-Jabbar, Nicole Eggert, Kendra Wilkinson, Louie Anderson, Drake Bell, Chuy from the E! Network, and Keshia Knight Pulliam.

Kinda shocking that Katherine joined the cast ... considering Webb did everything she could to duck the media after she was thrust into the spotlight during the BCS game earlier this month.

As we previously reported, Webb's BF was upset that she was getting more attention than his team -- so Katherine issued a self-imposed media ban on herself. She also told TMZ she wanted to move to Alabama so she could focus on her relationship with A.J..

But when the show came a callin', Katherine decided she spent enough time in celebrity exile.

Ndamukong Suh is also a pretty shocking addition to the cast -- considering he's in the middle of a huge contract and NFL coaches don't usually love it when a star player risks his health by jumping off a high dive.

Then again, Suh has an image problem -- people think he's a jerk -- and he could use the show to convince fans that he's not really the monster he appears to be on the field.

Michelle Obama's flat-top rocking nephew needs to get with the times -- so says one of the greatest flat-top rockers ever ... Kid from Kid 'n Play ... who tells us, the hairstyle is embarrassingly out of fashion and needs to die.

In case you weren't watching ... news cameras captured "First Nephew" Avery Robinson sporting a hi-top fade while watching his uncle Barack get sworn in for the second time.

But Kid -- real name Chris Reid -- tells us, it's a throwback 'do that never should've happened ... "I think that flat-tops should not come back ... It's an old style that now looks stupid to me."

Kid added, he doesn't want to "blatantly bash anyone" ... but said Avery needs "to get out of the time warp."

After winning a grueling five-hour fourth round match at the Australian Open, tennis hunk Novak Djokovic celebrated by tearing off his shirt and exposing his lean ripped chest and abs on Sunday.

Love.

It was a battle of the coats, as First Lady Michelle Obama and Second Lady Jill Biden made their fashionable entrances to President Barack Obama's inauguration on Monday.

Question is ...

Conservatorship wonder Britney Spears is finally free ... of her $90K engagement bling.

For the first time since breaking it off with her ex-fiance Jason Trawick, the newly single pop diva was spotted in L.A. this weekend minus the huge Neil Lane 3.5 carat rock.

As TMZ previously reported, Jason didn't have to ask for the pricey bauble back as Britney returned it all on her own.

With her lucrative Vegas deal in the works, she can buy a new rock whenever she wants.

"Vampire Diaries" gorgeous face Ian Somerhalder and "Magic Mike" sexy stud Matt Bomer hunked it out at an event in L.A. recently.

Question is ...

Colin Kaepernick's meteoric rise hasn't just been great for the 49ers ... it's also been HUGE for his longtime tattoo artist ... who tells TMZ business has exploded ever since the inked up QB led SF into the playoffs.

We spoke with tat artist Nes Andrion -- who's been working on Colin for years at his shop in Reno where CK played his college ball.

Andrion tells us ... ever since Colin started winning games in November -- when starting QB Alex Smith got a concussion -- customers have been pouring in, asking for 49ers-themed ink.

Nes tells us, "People come in and ask if I am the artist that does Colin’s tattoos, and ask when I think I am going to tattoo him again.”

Nes adds, “People want to get their tattoos done by the same artist as Colin Kaepernick."

According to Nes, Colin will be coming back in the off-season to finish his enormous angel-demon-themed chest piece.

It's pretty hilarious though, considering Nes is a proud Patriots fan -- but now that Colin's winning, he secretly hopes the 49ers can bring home the Lombardi trophy this year.

"To be honest I want [Colin] to take it even though the Pats are my team. He puts money in my pocket."

It's no Hollywood secret that Jodie Foster looks fantastic.

Here's the 26-year-old former child star at the Golden Globes in 1989 (left) -- and 24 years later, the 50-year-old two-time Oscar winner at the Globes on Sunday (right).

She's been accused of aging well.

Lance Armstrong and Manti Te'o ... two men dominating the sports headlines for all the wrong reasons. One for cheating ... and one for dating a dead person who never really existed.

Question is ...

Thirteen years after "Beverly Hills, 90210" went off the air, Ian Ziering, 48, and Jason Priestley, 43, proved they didn't just play best friends on TV and reunited for lunch in West Hollywood on Thursday.

Unfortunately, it wasn't at the Peach Pit.