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

Watch: Wolf Alice and James Blake play Radio 1's Headliners show.

Wolf Alice and James Blake recently performed live at Radio 1’s Headliners with Annie Mac event, held at The BBC’s Maida Value studios.

Watch performances of 'You’re A Germ' and 'Radio Silence’ below...