Think of Nickelodeon TV star Ariana Grande and it's almost impossible to picture the 19-year-old pop singer without a smile glued to her face, but things weren't always sunny for her on the set of "Victorious," which ended in February.

In a preview from the August 2013 issue of Seventeen magazine, "The Way" singer explains that there was tension with an unidentified co-star. "I worked with someone who told me they'd never like me. But for some reason, I just felt like I needed her approval. So I started changing myself to please her. It made me stop being social and friendly. I was so unhappy."

Since "Victorious" has wrapped, Grande considers herself "so lucky to be working with" current co-star Jennette McCurdy for their spinoff "Sam & Cat," which premiered earlier this month on Nickelodeon. "She is a real, genuine, honest person, a good friend, and doesn't care about all the superficial BS. She's the most hilarious actress I've ever met and I just adore her," Grande said of the former "iCarly" star.

Ariana Grande, Mac Miller 'Make Music All The Time'

The two recently stopped by MTV News to talk about their new show, which has Sam and Cat playing babysitters. "It's flattering that people, I think, responded to our characters so well and that they would want to see us continue on in a show together," McCurdy said.

While the two won't be belting out tunes anytime soon on the show, fans of Grande can hear the platinum-selling artist's forthcoming album, Daydreamin', when it's released in August. ...

Wiz Khalifa has officially decided on the title for the follow-up to 2012's O.N.I.F.C., naming his upcoming album Blacc Hollywood.

The Taylor Gang rapper announced the news on Tuesday after giving some love to Three 6 Mafia's Juicy J. "Juicy's album comes out this August. My guys a legend and still puts in more work than u young n----s #StayTrippy #Tgod," he wrote, then added, "Im droppin an album later this year too. & namin dat bitch 'Blacc Hollywood.'"

Taylors seemed to take quickly to the new title, with @RealSteelWheels, writing, "Hell yeah!! I like the title too super ill."

@RealAlexTaylor chimed in, "Hollywood couldn't change yu yo."

Just before making his album announcement, Wiz also dropped a video for "Old Chanel," featuring Smoke DZA, but he didn't specify whether the song would actually end up on the album, writing simply, "Just A Gift."

Back in March, Wiz made a cameo on "RapFix Live," where he explained that he and his newborn son, Sebastian "The Bash" Taylor Thomaz, had struck a deal that would allow him to get back to recording music. "He's letting me get back to work, so it's good," Wiz joked. "We talked about that the other day; he let me know it was cool."

Fans will likely find out how fatherhood is treating Wiz on his new album since he and fiancée Amber Rose welcomed their baby boy in February. In addition to his own work, the Pittsburgh rapper has been making the rounds with a few features lately, including an appearance ...

With this summer's superhero season halfway over, people are already turning their attention toward next summer's comic book offerings. Among them is undoubtedly Jamie Foxx, who will torment Spider-Man as the villainous Electro in next summer's "The Amazing Spider-Man 2," the sequel to 2012's hit reboot.

But when you cast an actor as charismatic as the Academy Award-winning Foxx in a relatively unknown role like Electro, you have to expect some changes to the character. And when Foxx sat down with MTV News' Josh Horowitz to discuss "White House Down," he said that included coming up with a villainous catchphrase on the fly.

"They would allow me to come up with things, because I think why you like going to see those types of movies, and that's what I dig doing, you want to hear catchphrases," said Foxx. "So at one point we were doing this green screen thing, and [Marc Webb] says, 'Just ad-lib something.' And I said, "The itsy-bitsy spider went up the water spout, down came... Electro... and wiped the spider out."

Electro's history as a Spider-Man rogue is not as well-regarded as the hero's big-time foes like Green Goblin, Doctor Octopus or Venom. Max Dillon has, at best, always occupied the B-list of Spider-Foes. So when he sat down with MTV News, Foxx revealed just what he and "the committee" — consisting of director Marc Webb and producers Avi Arad and Matt Tolmach — had in mind when breaking down Electro's character.

"What I wanted to bring, we all decided was, we wanted to make Electro a formidable ...

Rihanna has taken to Instagram to respond to a The Daily Maileditorial that called her "poisonous."

In the piece published on Monday, writer Liz Jones criticizes just about every aspect of Rihanna — her stage show, her personal life (specifically her relationship with Chris Brown), her fashion choices and her use of social media. The writer made references to a particular Instagram photo of Rihanna smoking two joints while traveling around Europe on her Diamonds tour.

"Of course, these little girls don't [realize] there is anything wrong with what they are doing — they just want to copy the chart-topping star... But if only she could be a better role model for young women," Jones writes. "I don't care if she has the voice of an angel and is self-made, feisty and confident."

She continues, "Is it fair that we berate female stars for being bad, when we don't admonish men in the same way? Yes, it is fair. Because young women are far more impressionable than young men. They want to be Rihanna, have her lifestyle, her clothes, her men, her habits... This poisonous pop princess should come with a government health warning."

Rihanna isn't taking Jones' comments lightly. Early Tuesday morning (June 25), she took to Instagram and posted a lengthy response to Jones' article, including an unflattering photograph of the writer.

"LOL!!!! My money got a bad habit of pissing people off!! If you sincerely wanna help little girls more than their own parents do, here's a toxic tip: don't be amateur with your articles, you sound ...

Sure, Chris Brown could have delivered a fancy, flashy video for — after all, his latest single does feature a posthumous performance from beloved R&B singer Aaliyah. But Brown decided to go in a different direction.

"Well, with the concept of the video, I wanted to bring a different aspect of it, not make it so Hollywood or wealthy or rich," Breezy told MTV News on Saturday backstage at Power 106's annual Powerhouse concert in Los Angeles.

Brown's black-and-white video only has hints of red and blue, signifying the warring Bloods and Crips. At the beginning of the clip, the superstar singer is riding around with his friends looking for trouble, until he decides to get out the car and avoid it all. At the end, he sends a rest in peace message to his friend Michael "Lil Frogg" Reshard, an up-and-coming Compton rapper who was shot and killed earlier this year.

"When I did the video I wanted to do kind of like the 'Boyz N the Hood' theme," Brown said, referencing the 1991 cautionary film starring Cuba Gooding Jr. "Also bring an aspect of the side of the world that people never really talk about anymore. Gun violence or stuff that we deal with in our neighborhood or community that we could just stop."

Breezy, who is from Tappahannock, Virginia, but now lives in Los Angeles, shot the video on Cedar Block, an infamous South Los Angeles neighborhood known for gang violence, one that he says welcomed him with open arms. "It's just a learning lesson for me ...

At the beginning of J. Cole's Born Sinner opener the Roc Nation MC reminds us that sometimes he's real like 'Pac and proceeds to spit venom indiscriminately. He gets a bit controversial when referencing homosexuals, raps about the disdain he had for Jay-Z in his younger years and sends a line toward Trinidad James.

The Atlanta newcomer hit it big last year after he dropped his super-catchy "All Gold Everything" single, but not everyone was a fan initially. "My pops was club hoppin' back when Rick James was out, and all I get is Trinidad James/ Wait a minute, that's strange," Cole rhymes, casting a shadow of doubt on Trinidad before he ultimately concludes: "If the hoes like it, I love it."

Rappers have been known to feud over less, but not James.

"He was just expressing himself," he told MTV News on Saturday backstage at Power 106's Powerhouse concert in Los Angeles. "Just in general if you really step back and listen to the song, he was just spittin' how he felt and I can't never be mad at somebody spittin' how they feel."

On Wednesday, Cole appeared on "RapFix Live" and talked to host Sway Calloway about the controversial track. While he didn't address the Trinidad line, he did speak about the irony of him being anti-Jay as a kid and then being signed to him years later.

"The 'Pac fan in me was riding, whoever he was riding against," Cole said, referencing Tupac's old beef with Hov. "I brought that up just to show the irony... ...

Mumford & Sons can't be kept down for long. Just two weeks after bassist Ted Dwane underwent brain surgery to remove a blood clot, the band has confirmed they will all be back onstage this weekend for the U.K.'s Glastonbury Festival — and for a North American tour kicking off in August.

"All we feel is incredibly grateful and happy that he's going to be OK, and that we're going to get back out on that stage at Glastonbury as four brothers and do what we do," keyboardist Ben Lovett told Radio Times magazine, according to Billboard. In addition to taking the stage together this weekend, the band has confirmed that they have rescheduled the tour dates they canceled after he was hospitalized.

"Firstly, we are pleased to report that our beloved Ted is making a steady recovery from his operation and wearing his newly acquired shaven-headed hairstyle with enviable levels of suave," the statement on the band's website reads. "A huge, huge thank you to all for your messages of support; the man himself is rather overwhelmed."

In addition to the rescheduled tour dates, the band also announced The Full English Tour, a North American jaunt kicking off August 26 in Toronto. After it wraps up in South Carolina on September 11, the band will play their four rescheduled dates in New Orleans, Texas and Kansas.

Mumford & Sons' "Full English" tour dates:
»8/26 - Toronto, ON @ Molson Canadian Amphitheatre
»8/28 - Queens, NY @ Forest Hills Stadium
»8/29 - Burgettstown, PA @ First Niagara Pavilion
»9/2 - Noblesville, IN ...