Merrill Garbus joined Plastic Ono Band onstage at Iceland Airwaves to perform Yoko Ono's "We're All Water" as a duet. We're not sure exactly where Amrit and Scott were when this happened, but my guess is that wherever they were, they were swooning. [videoembed size="full_width" alignment="center"][/videoembed] Iceland Airwaves continues through Sunday. When Amrit and Scott return on Monday, we're expecting ...