Icona Pop put out their debut album This Is… earlier this week and they stopped by Letterman to perform “All Night,” which also had a music video come out a few weeks ago. The Swedish duo definitely charmed everyone, including Letterman, by the end of the song. It’s clear why — they have musical chops along with a Spice Girls-worthy stage presence. Watch the video below and check out photos of the duo playing this past weekend at Freefest.
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