. . "2009-02-04Z"^^ . . "\"Hapi Hapi Sunday!\" (\u306F\u3074\u2606\u306F\u3074 \u30B5\u30F3\u30C7\u30FC\uFF01, Hapi Hapi Sand\u0113!) is the sixth solo single J-pop singer Koharu Kusumi, under the name of \"Kirari Tsukishima starring Koharu Kusumi (Morning Musume)\" (\u6708\u5CF6\u304D\u3089\u308A starring \u4E45\u4F4F\u5C0F\u6625(\u30E2\u30FC\u30CB\u30F3\u30B0\u5A18\u3002)). It was released on February 4, 2009 in limited edition and regular edition CDs. \"Hapi Hapi Sunday!\" was created for the anime series Kirarin Revolution\u2014a show in which the main character Kirari Tsukishima is voiced by Koharu Kusumi\u2014for use as its eighth opening theme song."@en . . . . . "Hapi Hapi Sunday!"@en . . .