Yes, by that we mean Jay Z.
It has since emerged that Beyonce left the party with her sister rather than him, hinting that she wasn't too bothered by her sister's actions.
It is unclear as to why the fight happened, and equally why Beyonce stayed well out of it.
Solange is shown to hit Jay Z three times as well as kicking him, while Jay Z remains perfectly calm.
Twitter has been abuzz with theories and questions.
So far, we've had that Solange was pissed off that Jay Z didn't help with her career, that she was annoyed that he went to Rihanna's post-Met party without Beyonce, and that she was seeking revenge on Jay Z for hitting her sister, see tweet below (though that has since emerged as a fake).
However none of these rumours has been confirmed by either party.
We do know that Solange deleted all pictures of Beyonce off her Instagram feed. Drama.
And there have been reports she had a mega rowwith Kimmy K's pal Rachel Roy earlier in the night too.
Our favourite theory however, is that her Givenchy dress played a very big part in the decision to keep clear of the scrap.
Seems legit. RT @SoloExMachina: So I got this theory that Solange is actually a personification of Beyonce's actual emotions yall— Memoirs of a Gangsta (@_CakeBawse) May 12, 2014
Beyonce always trys to portray perfection and innocence … somethings up in that family ik it.— LOADING . . . (@shruuugss) May 12, 2014
Beyonce can't back either side ... Marriage and family on one side ... Family on the other. Sounds like a horrid position to be in— #BringBackOurGirls (@LekpahShandii) May 12, 2014
What do you think happened? Tweet us @handbagcom
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