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

Fall Out Boy's latest 'show' was a 6-year-old fan's birthday party.

Actor Ryan Hansen (best known as Dick Casablancas on 'Veronica Mars') recently threw a birthday party for his 6-year-old daughter, and hosted none other than Fall Out Boy's Patrick Stump and Pete Wentz to entertain the young guests with an acoustic set.

This is adorable: