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

Watch: Stevie Nicks, Haim + Foo Fighters perform 'Stop Draggin' My Heart Around' live.

Tonight at the Foo Fighters’ show in Los Angeles, Stevie Nicks and the Haim sisters joined Dave Grohl [and his throne of axes] on-stage for a rendition of 'Stop Draggin' My Heart Around'.

Haim are so adorably over-the-moon - this is what true happiness looks like, friends.

Watch the performance below...