It’s easy to tell when a sistah’s love life is lacking by the way she treats others around her.

According to online reports, Mary J Blige forgot her manners and chewed out her band in front of A-listers and industry execs at a pre-GRAMMY event inside the Beverly Hilton’s international ballroom last night. They say just as the band was about to strike up Mary’s hit “No More Drama”, Mary began flailing her arms and demanded to know, “Can we get the right music for Mary J Blige?”

[For the benefit of those who don’t know, a classic sign of narcissism is when one refers to oneself in the third person.]

Anyway, she added: “Are we practicing still?” as the audience, which included Barbra Streisand, Jane Fonda, Usher, Taylor Swift and Joan Collins, looked on in disbelief because clearly, the band was not practicing, and it is not proper to disrespect top notch musicians at such a high profile event.

Mary eventually got herself together and continued her performance, and the well-heeled audience gave her a standing ovation, which was probably meant for the band.

Greg Phillinganes the legendary musical director of Mary C Blige’s band said later that the diva was right to halt the music and diss the musicians.

He explained that his ear piece wasn’t inserted properly and he hadn’t heard what the singer had said. Although I’m not sure what that has to do with Mary’s bad manners.

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