The Killers posted video of the rendition, which took place at the island home of Russian billionaire Roman Abramovich, with McCartney and Brandon Flowers trading lines on the "White Album" classic.
"So far, so good," the Killers said of 2017 after kicking off the New Year with a McCartney duet. It wasn't the first time the band had performed "Helter Skelter" live: Nearly a decade ago, in November 2007, the group closed out a Sydney, Australia concert with the song.
Following the impromptu performance, McCartney exited the stage and rejoined the crowd at the exclusive party. In addition to the Killers, Abramovich's New Year's Eve bash also featured mini-sets courtesy of the Rolling Stones and Guns N' Roses, the Telegraph reports.
On January 1st, McCartney wrote to fans, "Happy New Year’s Day. May this year be a happy and peaceful one for you and your family and everyone around the world. Love Paul."