On January 28, 2015, Kiss released a collaboration single with the Japanese female idol group Momoiro Clover Z, titled "Yume no Ukiyo ni Saite Mi na". It was the first time Kiss had issued a collaboration record with another artist. In Japan, it was released physically in two versions: "Momoiro Clover Z Edition" (on CD and Blu-ray) and "Kiss Edition" (CD only). An alternate mix of the single's title song was also included as an opening track on the Japanese-only SHM-CD album "Best of Kiss 40", released in Japan on the same day.