NEW YORK (AP) — Ariana Grande's "Problem" was an insta-smash, but the singer acknowledges that she wasn't sure how people would receive the song, which has become one of the year's biggest hits. The 21-year-old powerhouse vocalist dishes on creating "Problem," her budding acting career and collaborating with Justin Bieber and Iggy Azalea. ____ WAS 'PROBLEM' PROBLEMATIC? The saxophone-laced "Problem" is a contender for song of the summer, but Grande says she was somewhat afraid of the track. "Once we wrote it and recorded it, I was like, 'Hmm, I'm kind of scared of this.' It started to intimidate me a little because it felt different for me and it was such a risk with the whispers," she said.Read more on NewsOK.com