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

Watch: Ariana Grande hosting SNL.

As is to be expected, Ariana Grande killed it hosting Saturday Night Live this past weekend, performing two new songs - 'Dangerous Woman' and 'Be Alright' - as well as starring in various skits all throughout the episode.

Watch the performances and skits below...