Spitz's new song "Utsukushii Hire" has been revealed to be the theme song for 'Detective Conan: Kurogane no Submarine' that's slated to open in theaters on April 14.

 'Detective Conan: Kurogane no Submarine' is the 26th installment of the Detective Conan film franchise. The story will take place at a marine facility called 'Pacific Buoy,' which was developed on the coastal waters off of Tokyo's Hachijojima. There, Conan and Haibara Ai clash against their arch-rival, the Black Organization.

"Utsukushii Hire" was written by Spitz just for the upcoming film. It will be their first time providing a song for the Detective Conan series. You can listen to a clip of the song in the teaser below.