Nicki Minaj, Mariah Carey feud on Idol set

Los Angeles - Controversial rap star Nicki Minaj, who recently joined the American Idol judging panel, is shown yelling and making heated comments towards her fellow judge Mariah Carey, in a video posted to celebrity website TMZ on Tuesday.

The release of the video, which TMZ said was recorded during an Idol audition in Charlotte, North Carolina, follows rumours that the two had been feuding.

Idol broadcaster Fox is looking to the new line-up of judges, which includes country star Keith Urban, to help revitalise a show that has seen falling ratings in recent years.

Minaj, 29, is shown in the video yelling and cursing. It is not clear from the clip, which is less than a minute long, what might have led to the outburst or who shot the video.