Not only did Smurfette herself, Katy Perry, and her pal, songwriter Bonnie McKee, contribute some secret vocals to Britney Spears' "Smurfs 2" soundtrack tune, but it was McKee who insured that what they were singing was family friendly.

McKee told MTV News she tweaked the lyrics to take the song from PG-13 steamy to Rated G.

"I actually came in and was the doctor behind it. A lot of it was already written. It was a great song to begin with. ... They wanted it for the 'Smurfs' movie, and it was originally pretty sexy," McKee recalled about "Ooh La La," which features credits from the likes of Dr. Luke, Ammo and Cirkut as well as J Kash, Lola Blanc and Fransisca Hall. "I was like, 'OK, how do I take this sex-drenched song and make it Smurfs friendly?'

"That was kind of my task, but it still had to work at radio and be something that people would buy as a Britney Spears song because she's not a Smurf," she added. "So, it was just kind of fun to find double entendres to put in there and kind of trick the parents into thinking it's kid friendly."

Spears has noted that her sons, Smurfs fanatics Jayden and Sean, served as an inspiration for her to record the track for the movie. "I think Britney is in a different place, and she's a mother, and it seemed appropriate to kind of Smurf-ify the song," McKee said. "She's still a beautiful, sexy, fierce woman in charge, so we had to ...

We may not know a whole lot about Katy Perry's possible upcoming album, Prism, but we certainly now know a lot more about her personal life. Perry graces the September cover of Elle UK and opens up to the magazine about relationships, tabloid rumors and her longtime friendship with fellow pop star, Rihanna.

"I love her [Rihanna] and every time I see her, I'm reminded of the light that she has. There's a lot of dark in this business," Perry said before elaborating, without naming anyone specific. "I know a lot of people out there with the most detrimental entourages — they are the root of their demise. It's really unfortunate but you can't save these people. My days of celebrity saving are over."

Before she made that vow, she did find time to help one celebrity in time of need: Robert Pattinson. Following the breakup between Pattinson and his longtime girlfriend, Kristen Stewart, Perry was spotted with the "Twilight" actor, setting tabloids ablaze that the two were an item. Yet, it was Perry who put out the fire, setting the record straight with Stewart.

"I sent her a text message saying, 'I know you've seen all this stuff but you know I would never disrespect you. I'm not that person,' " Perry said. "I'm just trying to be a friend to him, but it is unfortunate that I do have a set of tits."

Perry is now keeping the focus on her own relationship with fellow musician John Mayer, who she ...

Mumford & Sons, England's leading purveyors of humility and bluegrass, are looking to branch out.

According to U.K. tabloid The Sun, the Mumfords are mulling the idea of distilling their own brand of whiskey — a spirit that doesn't really mesh all that well with humility, but goes hand-in-hand with bluegrass. Keyboardist Ben Lovett said, "It'll happen. It takes a few years to make, so we better get cracking!"

He's right, too: after grinding, mashing, fermenting and distilling, whiskey must age for a minimum of three years before it's ready for consumption. So while we can only speculate about what Mumford's custom-blend will taste like (beardy, with notes of flannel?) or what they'll call the brand (Dry No More? ), we've got to say we're impressed with their entrepreneurial flair.

Sure, everyone from Sammy Hagar to Marilyn Manson may have already beaten them to the booze business, but perhaps Mumford & Sons can inspire a whole new generation of musicians to create their own brands of liquor. Oh, and don't think we haven't already done the market research on this one:

One Direction: The lads could lend their name to a liqueur, similar to Pimm's, only sweeter. Maybe they call it Take Me Home ... I'm Drunk, or "What Makes You Beautiful (Is The High Alcohol Content Of This Drink?)" Either way, it's sure to be a hit with their fans — the ones old enough to drink, that is — and at the very least, it will tide us all over ...

It was a weekend of superheroes, volcanoes, waterfalls and a surprise visit from Slash. And now that we're back in the States, MTV News is looking back on just how epic Tomorrowland 2013 was.

Given the sheer size of the festival, It would probably be easier to point out who wasn't in Boom, Belgium, this weekend than who was. An incredible lineup of the world's biggest DJs entertained 180,000 electronic music junkies for three days of EDM madness.

"I think Tomorrowland to me is like the mother of creativity for all festivals," Nicky Romero told MTV News. "They always come up with an amazing stage, amazing people, amazing acts, and it's a really big honor to be here and to be a small part of this festival."

No stranger to the festival circuit, but new to Tomorrowland, U.K. producer Russ Chimes seemed shocked after his first glimpse at the main stage. "It's mental," said Chimes. "I've not been here before and we just went to see the main stage. Waterfalls, pyrotechnics and about a hundred thousand people."

Attendees stepped into a landscape of sight and sound featuring 15 stages on both land and water. Hosting a broad spectrum of dance music genres, guests spent the weekend at various stage events like the Garden of Madness, Carl Cox and Friends, and Super You & Me.

Saturday's highlights included an emotional set by Armin Van Buuren, who rushed to festival grounds only moments after his wife had given birth to a baby boy. The Dutch producer appeared teary-eyed as he began to play to thousands ...

One Direction are on the road with their Take Me Home Tour and prepping a 2014 stadium jaunt, Where We Are. But if you think it's all parties and girls between gigs, the guys wants you to know that simply isn't the case.

Regarding whether they party on tour, Niall Horan, 19, tells British GQ, "We haven't been on the road long enough yet; ask me in a few months' time. All last year, we were touring in America so we were all under age, so we couldn't really party then, anyway." Louis Tomlinson is the only group member of legal partying age, 21, in the U.S.

Liam Payne adds, "Maybe we need someone to schedule that in for us," but explained that the guys hardly have time to think about girls while they are traveling. "Groupies? We don't have time to party! I'm not even single. This sort of talk will get me in trouble."

While it's unclear who the lucky lady is that Liam is passing time with these days — he split from his longtime girlfriend Danielle Peazer earlier this year — Tomlinson says that even if he wasn't dating college student Eleanor Calder, he wouldn't be into groupies: "The type of girls that would sleep with you in a heartbeat aren't the type of girls I'd want to take home anyway," he says.

Until they make time to hit the clubs, the guys are prepping the release of their 3-D film, "This Is Us," for August 30 and still working on their third "edgier" album, rumored ...

In less than a year, Emblem3 have gone from relative unknowns to the next wave of pop stars.

The group — Drew Chadwick and brothers Wesley and Keaton Stromberg — won over viewers on last season's with their laidback surfer vibe, proving they had what it takes to gain commercial success. Following their fourth-place finish, the SoCal trio signed with Simon Cowell's Syco Music and Columbia Records, and released their debut album, Nothing to Lose, on Tuesday (July 30).

Teaming up with hitmakers Max Martin and One Direction songwriter Savan Kotecha, Emblem3 — who released the lead single, last month — have delivered an album made to accompany fans not only on their summer days, but on their long summer nights.

The trio stopped by MTV News to give us the breakdown on five tracks featured on Nothing to Lose, which Drew describes as "Justin Timberlake meets Sublime."

"Spaghetti"
Fun.'s Jack Antonoff helped the guys write this laidback uptempo track. Antonoff has experience writing songs about the perfect night out — his band's "We Are Young" — but "Spaghetti" encompasses everything about a perfect summer night in with friends.

"Let's ditch the party, ignore everybody/ And we'll make spaghetti, and it'd be all ready," the trio sing on the track.

"It's basically, you don't want to go to a rager, you just want to have a kick back and make spaghetti with your friends and just hang out and chill and relax, rather than go to a huge party," Keaton explained.

"XO"
Emblem3 recruited brothers Benji and Joel Madden to help pen "XO," ...

Most of us will probably never get to hop into a vintage car and cruise the streets of New York with Justin Timberlake. But on Tuesday morning (July 30), JT gave his fans a taste of what that would be like with the slow-motion reveal of the street party clip for his latest single, 


The stunt to promote the first single from his upcoming The 20/20 Experience — 2 of 2
 album required fans to tweet out a URL to help unlock a series of snapshots embedded with factoids about the "Night" shoot scattered across a map of the city. The digital scavenger hunt opened with shot of JT's classic blue 1970 Chevelle SS embedded with links allowing users to buy the single from iTunes, check out his tour dates and join the Tennessee Kids fan club.

A second photo from his recent Legends of the Summer show at Yankee Stadium
 with Jay Z included a number of fun facts about the image, including details about how some parts of the video were shot during the gig in front of 47,000 New Yorkers. That location also included some fan-shot photos of the show from the audience. By the time the car crossed the Brooklyn Bridge, we learned that the shoot took place on one of the hottest nights of the summer, when the mercury hit 99 degrees with nearly 100 percent humidity. The third stop also paid tribute to the city's Chinatown neighborhood, noting that a corner bodega was turned into a noodle shop for the video.

The ...

A week after Frank Ocean was forced to pull out of some Australian shows
 due to a torn vocal cord, his injury has caused another major cancellation. Ocean was slated to headline the first day of Drake's annual OVO Festival in Toronto along with British singer James Blake, but the vocal injury does not appear to be healing quickly enough for him to make the date.

Tickets will be refunded for the first night of the festival, which was supposed to kick off on Sunday at the Molson Canadian Amphitheatre. Blake has been shifted to the sold-out August 5 date, along with Drake and a list of as-yet-unannounced special guests.

Ocean was forced to scrap his sold-out Australian tour last week after doctors discovered a small tear in one of his vocal cords. In a statement announcing the canceled Australian dates, promoter Live Nation said, "After last night's [July 25] concert ... it was necessary to seek medical advice due to vocal issues Frank Ocean experienced during the show. It has subsequently been confirmed that Frank has suffered a small tear to one of his vocal cords and has received medical advice that he must rest his voice."

Spokespeople for Ocean, OVO and Live Nation could not be reached for further comment at press time. Ocean recently unveiled three new songs
 at a tour date in Munich, Germany, which might be headed for his in-the-works follow-up to Channel Orange.