Nicki Minaj struggled to remember the names of her co-stars while filming new comedy The Other Woman.

The rapper appears opposite actresses including Cameron Diaz and Kate Upton in the movie, and fellow castmate Leslie Mann admits Minaj had no idea who she was.

She tells Britain's Daily Star newspaper, "She always referred to me as the lady and not by my name... She's like, 'Lady, that lady.' I was like, 'Oh, God! She called me lady.'"