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

Watch: Lorde debuts new song 'Homemade Dynamite'.

Tonight during her set at Coachella 2017, Lorde debuted a brand new song titled 'Homemade Dynamite', as well as performed other new songs including 'Sober' and 'Melodrama'.

Watch clips of new song 'Homemade Dynamite' below...