Mary J. Blige’s former protegee has firmly denied allegations suggesting she is the other woman at the center of the superstar’s divorce drama.

Multiple sources alleged the mistress was singer/songwriter Starshell, who was previously signed to Blige’s Matriarch Record company, and Mary confirmed the speculation herself in her candid documentary “The Making Of: Strength Of A Woman,” which aired in the U.S. on Tuesday.

The VH1 show chronicled the development of her new album, “Strength Of A Woman,” and in one clip, Mary made it very clear to her collaborator Ne-Yo she wanted nothing to do with Starshell, branding the 28-year-old her “Becky with the good hair,” referring to the mistress Beyonce famously sings about on her Lemonade album break-up track “Sorry.”

Discussing the breakdown of her marriage, she said, “All these years have come to this, like you didn’t even pick me, you picked somebody else. That s**t is humiliating. It hurt real bad (sic).”

“And just so we’re clear…,” Mary warned Ne-Yo, “do not let her (Starshell) anywhere near what you’re doing for me (new music), because she’s the reason for all of this s**t. That’s my Becky with the good hair!”

However, Starshell, real name LaNeah Menzies, insists the accusations of an affair with Isaacs are “absolutely not true,” according to the New York Post’s Page Six column.

Isaacs, who is currently fighting for spousal support from Mary, has yet to comment on the explosive documentary. (via AllHipHop)