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

Watch: Fall Out Boy perform 'Young And Menace' live on The Tonight Show.

| by Shahlin Graves

After returning at the end of last month with new single, 'Young And Menace', Fall Out Boy appeared on The Tonight Show Starring Jimmy Fallon last night to give the song its live TV debut.

Watch the performance below...