Rosie Huntington-Whiteley was spotted leaving a pal's house in Hollywood on Thursday afternoon, and the Transformers hottie covered up her flawless figure with a long skirt and top, but she did show off a decent-sized ring on her left hand.

So what's the deal with the sparkler? Rosie shot down engagement rumors earlier this year, and while we can't say we've seen this particular piece of bling on her ring finger before, she is a big fan of jewelry, so it appears as though this is just another piece in her collection!

The trailer for Wanderlust has hit the web, and this is our first peek at Paul Rudd and Jennifer Aniston in the upcoming romantic comedy. As you may remember, this is the film where Aniston met current beau Justin Theroux, so even if it doesn't strike box office gold, she still got a pretty good deal out of it!

The flick follows a couple who leave their city life behind and join a hippie community, and it hits theaters on February 24.

The prosecution and defense gave closing arguments in Conrad Murray's involuntary manslaughter trial on Thursday.

Defense attorney Ed Chernoff said the prosecution "absolutely failed to prove a crime."

All the defense has to do is give the jury reasonable doubt for Murray to escape conviction. Chernoff reminded the jury of the defense's argument; that Jackson swallowed Lorazepam on his own.

Prosecuting attorney David Walgren called the defense's theory "junk science." He reiterated his points that Murray did not call 911 soon enough, and that he was negligent in his everyday care of Jackson. "Conrad Murray knew what he had done, and he knew his acts killed Michael Jackson ... Justice demands a guilty verdict," he said.

Justin Bieber isn't letting baby daddy rumors get him down.

While 20-year-old Mariah Yeater is claiming Bieber is the father of her baby and demanding in court that he take a paternity test, Bieber is brushing off the news.

On Wednesday, he hung out at radio station Power106, and showed off his rapping skills. But, Bieber might have been wiser to rap about something OTHER than his relationships with the ladies. At one point, he said:

"Get it done abundantly, she wants to get up under me ... I got honeys all up on me, baby I just get it done."

Oh, baby!

Gaga photo courtesy of Shareif Ziyadat/ABC

Lady Gaga will sit down with Katie Couric for ABC's holiday special, A Very Gaga Thanksgiving, and not only will the pop superstar perform eight songs (including several Christmas classics), but she will also chat with Couric and a handful of young students at her alma mater, Sacred Heart Catholic School in Manhattan.

"We all know Lady Gaga is a phenomenon. This is a chance to see more of who she is beneath the wild costumes and staged musical numbers," Couric told the press. "She will impress you, delight you and surprise you."

The 90-minute special airs on November 24, and get this -- Gaga is also going to cook deep-fried turkey and waffles as the cameras roll!

Miranda Kerr is still in NYC after throwing a big Halloween party on Monday -- a party that she got flack for, because it was on the same night as fellow supermodel Heidi Klum's bash!

But, Miranda brought it -- the party was a success! And NYC seems to be agreeing with the Aussie beauty; she and hubby Orlando Bloom are still in the Big Apple.

We caught up with Kerr as she headed into The Plaza hotel. She looked NYC-stylish in black stilettos and a scarf, and carried a cute burgundy tote.

On Wednesday night, Miranda and Orlando Bloom grabbed dinner together at an Italian restaurant, where she told reporters that baby Flynn is now crawling! Too cute!

To add more to the cuteness factor, Kerr recently revealed that her favorite Christmas present from Orlando was when he had love letters they'd written to each other framed.

Today Rob Pattinson, Kristen Stewart and Taylor Lautner had their handprints immortalized in cement outside of Grauman's Chinese Theater in Hollywood, and the trio smiled as they got their multi-million dollar mitts dirty in front of hundreds of screaming Twilovers.

Jimmy Kimmel hosted the ceremony, and Rob, Kristen and Taylor all thanked fans and the media for their support. "This is incredibly scary, and I also forgot how hot LA was. I shouldn't have worn a suit," Rob joked. "Thank you guys so -- this is such an indescribable honor for how young we are. You should all come up here and put your hands in!"

Twilight author Stephenie Meyer also made an appearance, and she told the crowd, "I think this is really awesome, and I know how much they appreciate your ardent support. Their lives have changed a lot in the last few years, and they've done it with such class and an amazing ability to stay balanced and who they are."

Breaking Dawn hits theaters in a little over two weeks -- we're def counting down the days!

Mariah Yeater, the 20-year-old woman who claims she slept with Justin Bieber, is showing off her pierced and tatted up body in new, scandalous photos.

Yeater says she and Bieber had sex following his concert at the Staples Center on October 25th of last year ... resulting in the birth of her son, Tristyn Anthony Markhouse Yeater.

In a California courtroom under oath, Yeater told a judge:

"On July 6, 2011, I gave birth to a baby boy. That was exactly 36 weeks and two days after the sexual encounter with Justin Bieber. Based upon the timing as well as the fact there were no other possible men that I had sex with that could be the father of this baby, I believe that Justin Bieber is in fact the father of my baby."

So after seeing some of these photos, do you see Bieber being attracted to Yeater? She doesn't look ANYTHING like his current girlfriend Selena Gomez.

See more photos of Mariah in our gallery below.