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

Twenty One Pilots & Post Malone cover 'Don’t Look Back In Anger' together live.

In a surprising turn of events that no-one saw coming, Twenty One Pilots were joined by Post Malone onstage at Leeds Festival this past weekend to perform a cover of the Oasis classic 'Don’t Look Back In Anger' together live.

Watch a video of the performance below...