Japanese singer yama released their latest digital song "Gridout" on April 2, posting the song's music video on their official YouTube channel . The song is now featured as the opening theme for the spring 2025 TV anime Your Forma , which premiered in Japan on the same day. “Gridout” was written, composed, and arranged by vocaloid producer and singer-songwriter Nuyuri, and marks the first time yama and Nuyuri had teamed up. yama "Gridout" Music Video Your Forma Creditless Opening Video yama made their major debut in October 2020. Most of their personal information, including date of birth and gender, is kept private. Among anime fans, they are best known for their theme song works for Spy x Family and Mobile Suit Gundam: The Witch from Mercury . yama posted their message about the song on the anime's official website as follows: Confronting painful memories is not easy. Without the maturity of the spiritual vessel, facing the facts will break it.