With a special guest appearance by Lady Gaga's false teeth? We can't help but ignore that in the promo pic above...

Miley Cyrus will sit down for an MTV Unplugged session next week, and not many details are known at this point in time, but we're sure it's going to be one heck of a show! Hopefully MTV will be releasing some promo clips over the next week or so? We're dying for a sneak peek at Miley's acoustic set!

Other famous Unplugged artists include Nirvana, Jay-Z, Katy Perry, Lil Wayne, Mariah Carey, Eric Clapton and Adele, and Miley's episode will air on Wednesday January 29 at 9 pm. Can't wait!

Rihanna hasn't met a topless pic she hasn't liked. The selfie-lovin' R&B star posted yet another topless pic from an exotic location on her Instagram. This time the 25-year-old was showing off her assets on a yacht off of Copacabana Beach in Rio de Janiero, Brazil.

Another day, another topless pic!

Clearly not a wall flower, Rihanna selected only a golden bikini bottom (and only a golden bikini bottom) to show off her toned physique. Rihanna showed off her plethora of ink and she seductively gave face to the camera with the backdrop of the South Atlantic Ocean. Nice view lady!

Another photo the "S&M" singer posted was in what appears to be a cave, her waved locks cascading along her back, as she gives the camera an oh-so-cheeky look in a thonged one-piece.

The racy pics will all be in the upcoming Vogue Brazil. The week-long photoshoot will be featuring snaps from different locales and various risqué ensembles. Not a bad life, if you ask us!

Biker babe alert!

Justin Theroux zipped around Beverly Hills on his motorcycle yesterday, and we almost didn't recognize him because he shaved off his scruff!

It's surprising the actor is on the West Coast, considering he's hard at work on the new HBO drama The Leftovers, which films back east. Jennifer Aniston's man plays the lead role in the show, which revolves around the biblical Rapture in modern times, where a group of people are forced to rebuild their lives after a sudden and mysterious disappearance of more than 100 people.

With all these projects, when does he find to help plan a wedding? Maybe his hectic schedule is the reason that rumors are spreading like wildfire that the screenwriter and the Friends star have called off their nuptials and are headed for a split.

The couple did spend New Years in Cabo, but we haven't seen them together since...

And not only that, but she candidly talks about how she wished for large breasts when she was a kid!

Katy Perry sizzles on the February 2014 cover of GQ, and the 29-year-old singer talks about her body, when she lost her virginity and her beau John Mayer.

On her famous assets:

"I lay on my back one night and looked down at my feet, and I prayed to God. I said, 'God, will you please let me have boobs so big that I can't see my feet when I'm lying down?' God answered my prayers. I had no clue they would fall into my armpits eventually."

On getting work done:

"I've never had any plastic surgery. Not a nose, not a chin, not a cheek, not a t*t. So my messages of self-empowerment are truly coming from an au natural product."

On drugs:

“The weed—I’m not friends with it. I can’t do that stuff. I’d be like in the corner: ‘Are you trying to kill me?!'"

On her love life, Katy reveals that she lost her virginity at the age of 16 while listening to Jeff Buckley's album Grace in the front seat of a Volvo sedan. "Love that record so much," she joked. So what about her relationship with John Mayer? "I think that I needed to grow up," she says of moving on from hubby Russell Brand. "I'm just having a wonderful experience with a wonderful guy. There's no rush."

Click the gallery below for more hot pix of Katy ... and click thru to see what she has to say about President Obama and aliens!

Lindsay Lohan attended a press conference to announce her new movie Inconceivable at the 2014 Sundance Film Festival on Monday afternoon, and the 27-year-old actress chatted with The Wall Street Journal about her latest creative endeavor.

Lilo revealed that she will start shooting the movie in March, and Lionsgate will be releasing the flick in limited theaters and video on demand through its Grindhouse division.

“The money was very easy because Lindsay is still considered a star among independent financiers,” Emmett/Furla Films chief executive Randall Emmett said of the $5 million film. (FYI, this is the same independent film company that most recently produced the new Mark Wahlberg flick Lone Survivor.) “I went to the insurance company and they met with Lindsay. They put a policy in place where everybody worked together to make it happen. It was actually easier than you might think.”

Lindsay added, “It’s nice to have someone like Randall give me the opportunity and put his faith and trust in me. It’s time for me to get back on set.”

While we've always been big Lilo supporters, the WSJ does make a pretty interesting point in that Lohan has not starred in film that grossed more than $100,000 since 2007. Despite the fuss over The Canyons last year, the film earned a paltry $51,135 at the box office. Maybe this will be her big comeback?

Bradley Cooper and his much-younger girlfriend Suki Waterhouse had a little make-out session last night at the Justin Timberlake concert at LA's Forum.

The couple double-dated with friends Emily Blunt and John Krasinski; Cooper had no qualms about planting a wet one on his lady in front of their friends and on-lookers.

Brad and Suki have reportedly been dating for about 10 months and it was just Saturday night that they finally attended their first event together -- the Screen Actors Guild Awards in LA.

Cooper, 39, nominated at every major awards event this season for his role in American Hustle, could take home an Oscar this year and it looks like his British model girlfriend -- who's only 22 years old -- may be sitting in the audience, cheering him on!

At last night's concert, the pair were relaxed and affectionate, an X17 photographer tells us: "Bradley look like a boy in love. They were giddy and happy and the excitement of the evening had them in such a good mood. Bradley was clinging to Suki and she was soaking up the attention."

When you're young and you have all the money in the world, why not go on an extravagant ski trip when things get tough at home?

The other day Justin Bieber and his entourage jetted off to Aspen, Colorado for a little adventure, and this comes just days after his house was raided by cops in connection with a felony vandalism charge. While authorities were searching the 19-year-old pop superstar's pad, they reportedly uncovered evidence of codeine and marijuana consumption, though no one from Bieber's camp has spoken out about the report.

Bieber is joined by pal Ryan Butler in Aspen, and though he posted a photo on Instagram of BFF Lil Za (who was arrested last Tuesday when during the police raid), it's not clear whether Za is currently with him. The group is believed to have gone to the Colorado ski town to watch the X Games extreme sports competition where a trick snowmobiler died during some stunts last weeks.

Bieber has posted a handful of videos and pictures on Instagram, and yesterday he seemingly made a reference to his recent troubles with a quote from Martin Luther King that read, "The ultimate measure of a man is not where he stands in moments of comfort but where he stands at times of challenge and controversy."

Check out Biebs' boarding skills in the clip below:

Er, former housewife, that is! And let's not forget about Gretchen's infamous fiance Slade Smiley...

On Monday afternoon Joanna Krupa and Gretchen Rossi lunched at Il Pastaio in Beverly Hills, and it looks like the trio had a blast catching up! Of course, Joanna is on the Miami show and Gretchen was once on the Orange County edition, but no matter! We're sure the two got to know each other at one of the many Bravo parties over the years...

Joanna tweeted afterwards, "Such a fun lunch w the girls! @GretchenRossi @dianamadison #goodballs #beverlyhills." She's seriously been everywhere lately ... and looking absolutely fabulous! But when is she getting back to hubby Romain Zago? Sounds like he's been missing her all the way back in MIA!