coup de main - noun
\ˌkü-də-ˈmaⁿ
Definition of coup de main : an attack that achieves complete surprise.

Emma Stone totally annihilating Jimmy Fallon in a lip-sync battle.

EMMA STONE IS A FLAWLESS HUMAN BEING!

As the latest celebrity to compete in one of Jimmy Fallon’s lip-sync battles, Emma completely SLAAAAAYEDDD… reducing Jimmy’s very valiant efforts to a rather poor second.

DJ KHALED!

Watch the battle below…