There are 4 groups called Happiness: 1) Japan (2009 – present) Happiness is a Japanese pop girl group signed to rhythm zone and managed by LDH. They are considered to be the sister group of best-selling J-Pop boy band EXILE, and have even performed as backup dancers with them in the past. The group formed in 2009 and released their first single, entitled "Happy Talk", under an independent label in October of that year. They made their major debut with the single "Kiss Me" in 2011