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

Watch: Harry Styles announces week-long The Late Late Show stint.

To announce Harry Styles’ upcoming one-week-long residency on The Late Late Show with James Corden, the two pals Facetimed in an adorable skit to break the news to fans.

Watch the video below...