2004 - Present. UNISON SQUARE GARDEN (ユニゾン・スクエア・ガーデン) is a three-piece Japanese rock band that formed in April 2004 and signed to TOY'S FACTORY label. Their early releases were electropop-based, but over time become a rock style. UNISON SQUARE GARDEN were previously signed to the indie record label UK PROJECT. On July 23rd 2008, they made their major debut with the re-release of their demo single "Sentimental Period".