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

Watch: Harry Styles perform 'Sign Of The Times' live for Graham Norton.

| by Shahlin Graves

Harry Styles made his solo UK TV debut with a performance of 'Sign Of The Times' live on The Graham Norton Show this week, as well as participating in a rapid-fire Q&A challenge.

Watch the performance below, as well as clips from his accompanying interview...