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

Watch: Holly Humberstone performs 'Scarlett' live on The Tonight Show.

| by Shahlin Graves

Having just wrapped her very first ever American tour - with all shows sold out! - Holly Humberstone celebrated by performing new single 'Scarlett' live on The Tonight Show Starring Jimmy Fallon.

Watch the performance below...

P.S. Read our latest interview with Holly here.