"It's Gonna Rain!" is Bonnie Pink's sixth single from the album Heaven's Kitchen. The single was released under the Pony Canyon label on June 18, 1997. It was used as the fifth ending theme for the anime series Rurouni Kenshin. Track listing It's Gonna Rain! It's Gonna Rain! (Instrumental) Oricon Sales Chart References 1997 singles 1997 songs Bonnie Pink songs Pony Canyon singles Songs written by Bonnie Pink