Kumi Koda and her sister misono are finally putting out their first collaborative single. Under the name "Koda Kumi x misono," they will release the song "It's all Love!" on CD next month. The fast-tempo tune tells of an older sister cheering up a brokenhearted younger sister, with lyrics written by Kumi and misono over a period of about six months.

Koda appeared on the music scene in 2000, while misono made her debut two years later as part of the band day after tomorrow. But after the group broke up in 2005, misono launched an unimpressive solo career, though she found a little more success as a TV personality.

Ringtone downloads for "It's all Love!" are scheduled to start on the 25th.