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

Watch: Bleachers perform 'Alma Mater' live on Late Night with Seth Meyers.

Rounding off the end of the year, Bleachers appeared on Late Night with Seth Meyers to perform 'Alma Mater' - the second single from Jack Antonoff's forthcoming fourth Bleachers album.

Watch the performance below...