 Their 31st single "Time," also used as the theme song for "Dynasty Warriors 7", has extended their Guinness World Record again.KinKi Kids started year 2012 with a new single .In a 2006 survey of people between 10 and 49 years of age in Japan, Oricon Style found the number one selling song "Happy Happy Greeting" (608,790 copies) to be the fourth most popular Valentine's Day song in Japan.