Ariana Grande believes she's been cheated on before.

The 21-year-old singer - who has dated The Wanted's Nathan Sykes and Jai Brooks in the past - is ''99.9 percent'' sure a former flame was once unfaithful behind her back and the experience has inspired her new song 'Break Your Heart Right Back.'

She told Attitude magazine of the track: ''It's about a boy who cheats on a girl with another boy.

''That's a very fun concept. Well, originally it was going to be about a boy who cheats with a girl, but then I was like, 'No, I want it to be about a boy who cheats on a girl with another boy.' ''

She added to the Metro newspaper: ''It's one of my favourites on the album ['My Everything'] and it's really funny because I believe it has happened to me. I'm not 100 percent positive, but I'm 99.9 percent positive.

''I would rather he cheats on me with a guy than with a girl any day! If I found out my boyfriend was gay, I would be like 'OK!' I'd be so relieved.''

However, the 'Problem' hitmaker has since taken to her Twitter account to claim the track doesn't necessarily refer to an ex-boyfriend, but is something she's experienced a ''long time ago.''

She tweeted: ''People loooove twisting my words lol. I never said ''my ex''. so don't trip. It was a a looooong time ago.... and it made for a great song. (sic).''