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

Watch: Billie Eilish performs 'Bellyache' live on The Tonight Show.

| by Shahlin Graves

Billie Eilish is currently touring America, and made a pit-stop in New York to NBC to perform 'Bellyache' live on The Tonight Show Starring Jimmy Fallon.

Watch the performance below...

P.S. Click here to read our latest interview with Billie.