The 'Break Free' hitmaker loves nothing more than slipping into a comfortable all-in-one pyjamas set when she isn't working.
The 21-year-old pop beauty - who is currently dating 26-year-old rapper Big Sean - shared: "But that's fine, that's OK. As soon as I get home, I'm getting in a onesie! I've even had onesie and heels day. When I throw the heels on with a pyjama moment, I just feel that much better ... Everybody has those days though, so it's totally fine, I don't even mind being seen."
Ariana has revealed a more mature side of herself in her new single 'Love Me Harder' - which features Canadian recording artist The Weeknd - and the songstress is thrilled the watching world is getting to see a different aspect of her personality.
Talking to Will Manning on KISS FM UK, she said: "'Love Me Harder' is a really special one. I've waited so long to show a more serious, darker, mature side of me. I think, partially, because I was a little nervous about it.
"But part of me really just wanted to do that anyway. Just to be like, 'Hey I am an adult, and here is my more adult side.' "
Ariana, whose second studio album, 'My Everything', has been a massive hit this year, revealed she's looking forward to enjoying a traditional Italian family Christmas.
She said: "We have a loud, Italian family, who plays lots of poker. And you know, there's games and gambling, and cooking, and drinking, and festivities, and it's very fun."
Listen to the full interview this Wednesday from 7pm on KISS FM UK and then check out the video at youtube.com/user/KissFMUK