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

Watch: Gracie Abrams covers Lorde's 'Liability'.

During a recent show in Denmark at the Copenhagen Distillery, Gracie Abrams performed a heart-wrenching cover of Lorde's 'Liability'.

Watch fan-filmed videos of the cover below...