The shocking clip, which was recorded May 5 at the Standard Hotel, shows four people, presumably, Beyoncé, Jay Z, Solange and a bodyguard entering the elevator before the aggravated woman, who is presumed to be Solange, begins yelling at the gentleman in white (purportedly Jay Z) before launching into an attack.
However, it appears that another incident went down before the brawl that has the entire Internet buzzing.
According to a source, "Solange and Rachel Roy got into an argument prior to the elevator incident," which apparently provoked the singer.
Roy has known the Knowles family for years as she used to be married to Jay Z's ex-partner Dame Dash, and yesterday, after the tape was released, Dash posted a picture on Instagram of Solange with the caption "I am actually impressed with her independent spirit, she seems like a fighter."
A fighter with a mean high-heeled kick, so what sent Solange over the edge?
"Jay said something inappropriate to Beyoncé and Solange, and she snapped," a source tells People. "When they got in the elevator, it escalated quickly the way family tensions can. It got exceptionally heated the way family moments can."
"Solange is super protective of Beyoncé," the insider added.
However, it appears that things may not be smoothed over with her sister, as Solange has since deleted all but one photo of Bey from her Instagram account (for what it's worth, she still follows her sibling) even though the two left together the night of the brawl and even traveled to Costa Rica just three days later for a get-together involving Kelly Rowland and Michelle Williams that may have involved Rowland tying the knot with fiancé Tim Weatherspoon on Friday night.
But Bey was back in New York and all smiles on Saturday, when she caught the Nets-Heat game with her hubby. The picture-perfect couple enjoyed a Mother's Day brunch with daughter Blue Ivy on Sunday and then stepped out for an uneventful dinner date.