You know the scene we're talking about! The NYC-based prank collective Improv Everywhere recruited a team of 20 women to recreate the famous diner scene from the 1989 rom-com "When Harry Met Sally," and the reactions are priceless!

The prank took place at the same diner featured in the film, Katz's Delicatessen, and according to the group's website, deli staffers and fellow patrons had no idea it was coming, so those expressions are genuine!

Watch the hilarious video below and make sure to check out Improv Everywhere's other great pranks!