See what Beyonce, Chris Brown, Kim Kardashian and more wore for Halloween 2015.
Ariana remained very composed during the incident.
Ariana Grande kept her cool after a fan hurled a mobile phone at her while she was on stage during a Q&A session.
After her initial surprise, Ariana looked down at the phone and asked: “Did someone throw a phone at me? That’s so dangerous!”
She added: “What if your screen cracked?”
Watch footage of the incident below:
The phone was later retrieved and given back to its owner.
Dressed as Jack from 'The Nightmare Before Christmas', Grande also performed her new single ‘Focus’ at the iHeartRadio Theater in the US.
Watch a clip from her performance above.