Kevin Ammons, author of the Whitney Houston unauthorized biography, “Good Girl, Bad Girl,” claims that singer’s mother, Cissy Houston, had an open disapproval of Houston’s former close friend Robyn Crawford.

On more than one occasion, Cissy Houston allegedly told Whitney, “get rid” of Robyn Crawford or she would destroy her career, saying it wasn’t “natural” for two women to be so close.

Kevin Ammons also mentions that Robyn Crawford allegedly became upset when Bobby Brown had sent Whitney Houston four hundred roses before their marriage.

Kevin Ammons, author of the Whitney Houston unauthorized biography, “Good Girl, Bad Girl,” claims that singer’s mother, Cissy Houston, had an open disapproval of Houston’s former close friend Robyn Crawford

The author also said that Regina Brown, Whitney Houston’s former publicist, told him, the story of a very public altercation between Whitney and Robyn Crawford at the 1991 Super Bowl, where the singer sung the national anthem.

Regina Brown allegedly said that M.C. Hammer appeared, he and Whitney Houston went off by themselves, talking and laughing and Robyn Crawford allegedly flipped.

After M.C. Hammer left, Robyn Crawford went and grabbed Whitney Houston’s arm and pulled her aside and started screaming at her. Then, Robyn Crawford allegedly screamed: “Don’t ever disrespect me like that!”

Whitney Houston allegedly jerked away and told her to go to hell and Robyn Crawford hauls off and slaps Whitney.

Cissy Houston allegedly yelled: “Don’t you ever put your hands on my daughter!”

Then Cissy Houston slugged Robyn Crawford in her right jaw with her fists and Robyn falls to the ground. Cissy Houston kept punching and kicking her, yelling: “I’ll kill you, you stupid b**ch!”

Onlookers had to pull Cissy Houston off Robyn Crawford.

Kevin Ammons also claimed that Regina Brown once told him, one of the conditions of working for Whitney Houston was that she never said a word about Robyn Crawford to anyone.

To allegedly insure her silence, Whitney Houston had given Regina Brown many expensive presents: a gold Mercedes-Benz, a diamond studded cross, a corporate credit card, a calling-card account, diamond earrings, free air travel, $125,000 a year salary and free rent on her luxurious apartment.