"Fatal" (ファタール, Fatāru) is a song by Japanese duo Gemn, consisting of Japanese singer and actor Kento Nakajima and singer-songwriter Tatsuya Kitani. It was released by Mastersix Foundation on July 4, 2024, as the opening theme for the second season of Japanese anime series Oshi no Ko. Commercially, the song peaked at number three on the Billboard Japan Hot 100 and number two on the Oricon Combined Singles Chart.
On May 26, 2024, Japanese anime series Oshi no Ko uploaded the anime's first trailer, revealing that the opening theme for the anime's second season would be "Fatal", which was performed by Gemn, without any information of the artist. On the same day, the artist's website was launched to countdown for more details,[1] including letters from members,[2][3] some lyrics,[4] and liner notes.[5] The identity of the artist was unveiled on June 30, to be Kento Nakajima and Tatsuya Kitani, as well as the song's release date, July 4, 2024.[6] The CD single format—"Gemn", "Anime", and standard—was released in Japan on September 4,[7] and internationally by Black Screen Records in October 2024.[8]
An accompanying music video for "Fatal" premiered via Kitani's YouTube channel on July 5, 2024. It was filmed in South Korea and directed by Kim Woo-je of Etui Colletive. The music video included the diverse sets and dance scenes of Nakajima and Kitani.[9]
