Ariana Grande insists she doesn't take herself ''too seriously.''

The 'Break Free' hitmaker, who is dating rapper Big Sean, claims there are a lot of misconceptions about her and says rumours she's difficult to work with are ''fictional.''

The 21-year-old singer said: ''I take my work seriously, but I don't take myself too seriously. I think that's the biggest misconception about me.''

The brunette beauty is still adjusting to her success.

She told the December issue of InStyle magazine: ''Some things are easier now, and others are harder. I never expected to be in a position where so many people are invested in every little thing I say and so.''

Ariana was amused by a report she once said she hoped her fans would ''f**king die.''

She said: ''That one had me laughing hysterically. Because anyone who knows me or has done any homework at all knows that I would literally give a limb for my fans.

''Part of me wants to say, 'Oh my god, that's so not me! Please don't believe that!' ''

The 'Problem' hitmaker recently confessed Big Sean is ''one of the most amazing men in the world, and that includes my grandfather and my brother,'' but plans to keep most of the details about their romance private.

She said: ''On the one hand, I feel like I'm growing up and realise my life is my life and some things don't need to be shared. But I'm very spur-of-the-moment, very open with my fans. And if there's a cute pic I like that's a little personal and I want to share it, maybe I will.''