Facebook founder Mark Zuckerberg and Rihanna are totally hanging out in San Francisco this summer — and it looks like Leonardo DiCaprio will be bro'ing down as well.

Well, at least they'll be bro'ing down in effigy; the trio of stars will live forever in wax at the soon-to-be-opened Madame Tussauds wax museum on Fisherman's Wharf.

The Madame's new digs don't open until June 26, but Mashable caught a sneak peek at the goods this week, feasting eyes on a smiling wax Zuckerberg, barefoot in the lotus position, toting a computer (cleverly non-branded). The Facebook founder joins fellow tech stars Steve Jobs and Bill Gates in Madame Tussaud's collection of stiffs.

According to Mashable, Zuckerberg didn't sit for the figure. It took 20 artists several months to construct his hoodied form, and his hair, which is real, by the way, was inserted strand by strand. Looks like both the real and faux Zuckerberg are true mold-breakers.

How many Facebook profile snaps do you think will include waxy Zuckerberg come summer? I'm guessing legion. Meta.

Last week, TheOneRing.net reported that the third "get a name change. According to the site's source, the final chapter of Bilbo's adventure would be called "Into the Fire."

I weighed the pros and cons of a possible change and argued that a previously rumored title, "The Battle of Five Armies," was actually more fitting and more — well — badass. And while I can't confirm that Peter Jackson reads MTV.com, his latest Facebook post at least suggests we think alike.

That's because the final film in the director's prequel trilogy will be called "The Hobbit: The Battle of Five Armies."

PJ gave a pretty logical explanation for the change on his Facebook. Basically, calling one third of the story "There and Back Again" doesn't make sense when you consider that's how Tolkien referred to the entire story of Bilbo's journey to the Lonely Mountain and back.

"When we did the premiere trip late last year, I had a quiet conversation with the studio about the idea of revisiting the title," Jackson wrote. "We decided to keep an open mind until a cut of the film was ready to look at. We reached that point last week, and after viewing the movie, we all agreed there is now one title that feels completely appropriate."

As the new title would suggest, the beyond-epic Battle of Five Armies pitting the good dwarves, humans and elves against orcs and wargs will take up the majority of the last movie. When I spoke with Luke Evans, who plays Bard, he suggested that Jackson was looking to ...

Don't get me wrong: I'm a huge fan of shirtless Justin Bieber.

Justin shirtless on the street, Justin shirtless in an airport, Justin shirtless with Rick Ross, Justin shirtless on Instagram: I beliebe in it all.

But Biebs' most recent shirt-shedding caught me a little off-guard, and I couldn't quite place where my bafflement was coming from.

Perhaps it was the quasi-inspiring caption? "Love your neighbor as yourself. And btw your neighbor isn't just the one next door ;) #wordsofencouragement ♛" Is he saying that to his body? I mean, do what you gotta do, Justin. Maybe he was just acting out the idiom "getting something off your chest."

Maybe it was his ultra-veiny hand? Or the way the shadows play against him?

No. Justin's latest selfie reveals some serious pectoral action going on — too much, in fact, that maybe it looks like he's about to breastfeed. (I said it so you don't have to, Beliebers.) His chest muscles are so mountainous peek out from his shirt and his thick gold chain falls down to the side.

The real problem with this shirtless seduction is that, well, Bieber is only HALF shirtless. And that doesn't seem to be Bizzle's style.

All I can say is: a Pharrell hat-tip to you, friend, for making stylish strides. We'll be seeing the half-shirt on runways in Milan soon. After all, you did say, "I am fashion."

Are you in a band? Do you think your band is good? Do you want to play a major festival alongside heavy-hitters like The Black Keys, The Killers and OutKast? Well, you're in luck! Hangout Festival wants you to hit the stage this May!

MTV is headed back Gulf Shores, Alabama, for the fifth annual Hangout Music Festival, May 16 through 18, and MTV Artists is letting you opt in for the chance to play. Simply set up your artist page on the platform — replete with audio, video, photos and info — and head to this dedicated page to opt in to the opportunity. Oh, and remember to get your fans to share the hell out of your page.

MTV will choose one artist to play the festival on Sunday, May 18, at noon on the Main Stage. Said band's tunes will be live-streamed to millions of fans at home and covered across MTV's websites and social networks. Plus, the band in question will get free passes to the fest, as well as lodging. Pretty sweet deal!

Last year, soul pop duo Johnnyswim were our big winner, soon after becoming a VH1 You Oughta Know artist and signing to Big Picnic, distributed by Sony/RED.

Do you think you have what it takes to fill Johnnyswim's shoes this time around? Well, what are you waiting for: Get out there and opt in!

"American Idol's" Top 6 played it a little bit country, a little bit rock and roll on Wednesday, with every contestant singing one song from each genre.

At this point in the competition, a clear picture is starting to emerge of how this season will shake out, and Wednesday's show reinforced those standings. Put plainly: This is now Caleb Johnson's to lose, and everyone else is fighting for scraps.

Here's how Wednesday's show unfolded.

Caleb Goes To Town On Black Crowes
Caleb Johnson has been a rock week in and week out in the competition, a clear frontrunner from the jump off, and on Wednesday he turned in his best performance yet when he belted out the Black Crowes' "Sting Me" in a way that would make Chris Robinson himself throw his hands up in praise. Johnson got so caught up in the performance that at one point he dropped his microphone, but as it rolled off he scooped it up without missing a note, and his reaction in the moment only made the performance stronger.

His second song — a rockin' take on Carrie Underwood's "Undo It" — made Keith Urban quip, "I can't wait to hear what country song you do later," but the first was so strong the night was undoubtedly his.

"When you take the perfect song choice and couple that with an incredible performance, it's virtually impossible to beat," Harry Connick Jr. told him.

Jena Takes On Heart, Alex Lets Out His 'Animal'
If things continue on their current trajectory, Jena Irene and Alex Preston will finish second and third, respectively, ...