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

Watch Haim perform '3AM' live with a cameo from Robert Pattinson.

| by Shahlin Graves

"3am is the witching hour," say Haim of their latest TV performance - a rendition of '3AM' for Late Night with Seth Meyers, featuring a video cameo from none other than "emotional vampire" Robert Pattinson.

Watch the performance below, which includes an important message at the end...

P.S. Read our recent Haim cover story here.