Solange Gets Caught Hitting On Jay-Z – Exclusive Video

Jay Z was ferociously assaulted by Beyonce‘s sister Solange  … who was wildly kicking and swinging at him inside an elevator … and the attack was captured on surveillance video … obtained by TMZ.

According to our sources, it all went down at a Met Gala after party last week at the Standard Hotel in NYC.  In the video … Jay Z, Beyonce and Solange step into the elevator … and then Solange goes crazy, screaming at Jay before unleashing a violent attack. 

A large man — who appears to be a bodyguard — attempts to hold Solange back, but she manages to connect at least 3 times.  At one point Solange throws a kick and Jay grabs her foot, but never attempts to strike her.  Beyonce stands by without getting physically involved.