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

Must-watch: Holly Humberstone performs 'The Walls Are Way Too Thin' live for Jools Holland.

Holly Humberstone made her Later... with Jools Holland debut last week with a stunning solo rendition of new single 'The Walls Are Way Too Thin' filmed in London at Holland's East London studio; Helicon Mountain.

Watch the performance below...

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