"Nicki had a shoot last week in New York City and she was four hours late. Four hours!" the source said.
"I don't care who you are…making an entire crew and staff of people wait for you for hours on end just because you feel like it, it's not cool."
The insider tells RadarOnline.com that once Nicki arrived on set, her diva behavior was out of control.
"Even once she arrived, she just acted like she was way above everyone else," the source continued.
"It was really disappointing to see a relatively new artist act like that, with that sense of entitlement."
Nicki, 29, has been quoted as saying she adopted alter egos as a child to deal with her parents constant fighting.
"To get away from all their fighting, I would imagine being a new person. 'Cookie' was my first identity – that stayed with me for a while. I went on to 'Harajuku Barbie,' then 'Nicki Minaj'. Fantasy was my reality," she said.
Sounds like she has another to add to the list: Diva Nicki!
Super Booty! Nicki Minaj Flaunts Her Awesome Assets In A Pink Bikini