Ariana Grande Was 'So Unhappy' With 'Victorious' Drama

Sam & Cat star dishes to Seventeen about on-set troubles.

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.

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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. On it, expect her to "channel super-confident women like Alicia Keys, Mariah Carey and Beyoncé," she tells the mag.

"I realized that if you want something, you really have to go for it, just like they do," she said.