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

Watch: James Bay and Ed Sheeran perform 'Let It Go' together live.

| by Shahlin Graves

During a UK show in Cambridge earlier this week, James Bay welcomed Ed Sheeran on-stage to perform 'Let It Go' together live as a duet.

Watch the performance below...