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

Watch: Twenty One Pilots perform 'Shy Away' live on The Tonight Show.

In support of their new album 'Scaled and Icy', Twenty One Pilots appeared on The Tonight Show Starring Jimmy Fallon to perform lead single, 'Shy Away', basking in the multi-coloured splendour of their latest aesthetic.

Watch the performance below...