The reason why solange attacked JayZ

Solange, 27, was annoyed that Californian fashion designer Rachel, 40, was hovering around Jay Z at the star-studded New York event An insider told the site: 'Solange was defending Beyoncé in the elevator because Solange finds Jay’s friendship with Rachel to be WAY too close for comfort and it makes Solange very uncomfortable.' The insider added: 'Beyoncé also confronted Rachel and said, "Don’t talk to my sister like that," after [Rachel] confronted Solange.' And Solange was apparently so incandescent about the whole affair she ended up getting into the violent confrontation with her brother-in-law. The 27-year-old apparently told the designer 'anyone who gets close to Jay has to be warned and deal with her as a sister,' according to a Us Weekly source. However the insider added: 'Rachel is combative and a tough girl, She didn’t back down,' and the hip-hop mogul, 44, and Beyonce, 32, had to intervene to separate the two as they got into a heated argume