Everyone who saw Lykke Li perform live at the Bowery Hotel in New York last Friday was treated to the performance of an untitled and, more importantly, new song from the Swedish songstress. She apparently wrote it the day before the concert and, from the sound of it, must have been listening to some catchy material from the '60s and '70s.

At least, that's what the track sounds like here, what with its infectious sing-along hook and hand claps. Watch the performance above. It took place during the launch event for Lykke Li's new label, Ingrid.

[via LykkeLi]