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

Ed Sheeran covering Taylor Swift's 'I Knew You Were Trouble'.

Ed Sheeran recently covered part of Taylor Swift's single 'I Knew You Were Trouble' during an interview with Hamish & Andy in Australia.

Watch Sheeran's acoustic cover below...