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

A Billie Eilish carpool karaoke is coming!

It looks like Billie Eilish's carpool karaoke isn't far away - with her and James Corden spending the day yesterday filming for it out in Los Angeles, even paying a visit to one of Eilish's favourite haunts, Highland Park's Donut Friend.

Check out the footage and videos of the filming below: