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

Olivia Rodrigo performs 'Deja Vu' and 'Uptown Girl' with Billy Joel.

Olivia Rodrigo joined Billy Joel onstage tonight at his Madison Square Garden show to perform both her song (in which she namedrops Joel) 'Deja Vu', plus a cover of Joel's hit song 'Uptown Girl' together.

Watch some clips from the performance below...