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

NZ Harry Styles fans can shop merch early this Saturday.

Harry Styles fans will be able to shop early his available merchandise range at the upcoming Auckland show at Spark Arena this coming Saturday, December 2nd.

As an indication of approximate prices, here's the pricing from earlier this week in Australia: