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

Watch: Halsey performs 'Bad At Love' live on GMA.

| by Shahlin Graves

As a pit stop on her current headlining tour of North America, Halsey appeared on Good Morning America today to perform 'Bad At Love' live from their studio in Times Square.

Watch the performance below...

P.S. Click here to read our new interview with Halsey.