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

Watch: Harry Styles and Wolf Alice's Ellie Rowsell perform 'No Hard Feelings' together live.

Harry Styles invited Wolf Alice frontwoman Ellie Rowsell onstage last night during the final show of the European leg of his Love On Tour in Lisbon, performing a rendition of 'No Hard Feelings' (from Wolf Alice's 'Blue Weekend' album) together live.

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