Nicki Minaj was bullied at school.

The 'American Idol' judge had a tough upbringing because of her parents' volatile relationship and having to move schools and she admitted she struggled to fit in.

Nicki told Teen Vogue: ''Every time my parents fought, my mother would have us move and I would have to go to a new school, which meant I'd have to face the task of making new friend.

''I encountered jealous girls a lot. What it came down to is that the bullies wanted me to bow down to them and I just wouldn't.

''Sometimes there'd be a fight, sometimes not. I let people know I wasn't going to be pushed around.''

Nicki, 30, also admitted she used to struggle with negative comments about her online after she became famous.

She explained: ''I used to read the bad things people said about me. Then I asked myself, 'Why am I reading that when I have millions of people saying great things?' You cannot give negativity power.

''I tell teens...If people keep taunting you and you keep reading it, it's poison.''