Nicki wasn't happy that wannabe Stephanie Schimel had chosen the same colour make-up as her

Nicki Minaj and Mariah Carey were seen fighting on American Idol this week over a contestant with pink eyeshadow.

The spat began when Nicki, 30, said no to hopeful Stephanie Schimel, while Mariah, 42, and fellow judges Keith Urban and Randy Jackson voted her through to the next round.

‘I was not wowed. I thought your voice was pretty, you are pretty, nothing jumped at me,’ said Nicki.

‘We have seen such magnetic things today and I don’t think you compared to what we have seen today.’

Nicki then told Stephanie, 20, that she didn’t choose her because they were wearing the same colour eye make-up.

‘We have a rivalry and that is why I said no,’ she said.

Mariah wagged her fingers and remarked: ‘This is what I deal with, this is what I deal with when I come into my job.’

Nicki replied: ‘Oh no, because you ain’t got nothing like me.’

The pair continued to bicker, leading country singer Keith, 45, to tell them he felt like their ‘scratching post’.

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Anna Duff