Check this out ... Beyonce and Jay Z were sitting courtside at Game 3 of the NBA Finals on Wednesday ... when a woman leaned over Her Beyness to talk to Jay.
Suddenly, Bey went from smiling and happy ... to SIDE EYE -- and it was all captured on video.
Jay-Z and Beyoncé are courtside for Game 3 ud83dude0e pic.twitter.com/6mmJuN8Odn
— ESPN (@espn) June 6, 2019
So, who is the woman? Her name is Nicole Curran -- and she's not just some random fan -- she's married to Warriors owner Joe Lacob!