Ariana Grande's giggle at the beginning of her hit song Problem was a response to her attempt to crack a joke in the studio.

The pop star reveals producer Max Martin suggested she kicked off the recording by joking "I'm back", but Grande admits she just sounded creepy.

The singer tells Rolling Stone, "It ended up sounding like the creepiest thing you've heard in your life, like Samara from (horror movie) The Ring, like a scary-movie villain. I was like, 'We cannot use that', and I started laughing hysterically."

Martin clearly liked Grande's giggles and insisted on keeping them on the record.