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

Watch: Marlon Williams & Lorde cover Bruce Springsteen's 'Tougher Than The Rest'.

Last night during the final night of a sold-out four night run at Auckland's Hollywood Theatre (following two sold-out nights at the Auckland Town Hall's Concert Chamber!), Marlon Williams brought out Lorde as a surprise special guest to perform a piano-led cover of Bruce Springsteen's 'Tougher Than The Rest' as a duet together.

Watch clips of the performance below...