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

Watch: Taylor Swift performing 'Out Of The Woods' live at the 2016 Grammys.

Taylor Swift - accompanied by Jack Antonoff playing guitar - opened the 2016 Grammy Awards tonight with a performance of her latest '1989' single, 'Out Of The Woods'.

Already, TayTay has won two out of her seven nominations - winning Best Pop Vocal Album for '1989' and Best Music Video for 'Bad Blood'.

Watch the performance below...