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

Boygenius join Billie Eilish to perform 'When The Party's Over'.

August 30, 2023 | by Lola Jacob

Boygenius joined Billie Eilish tonight to perform 'When The Party's Over' at Electric Ballroom in London. After they performed the track, Eilish shared with the audience, “I’m in love with all 3 of them.”

Watch the performance below...

#BillieONO: Billie performing “when the party’s over” with @xboygeniusx tonight at @EBallroomCamden in London, UK! 💫 pic.twitter.com/ZF9oog9jxi
— Billie Eilish Tours (@billieeilishtrs) August 29, 2023

Boygenius have just joined Billie Eilish onstage to sing When The Party’s Over in London! pic.twitter.com/V3qVZdfPpk
— phoebe on tour (@bridgersontour) August 29, 2023