CRAVITY brings the debut single in Japan! The A-side is a retro-pop funk tune "Groovy" (Japanese ver.), which was released in Korea in March 2023 and the music video has already received over 10 million views. The B-side song is "I Can't Fight The Feeling," which is CRAVITY's first original song in Japan. The regular edition comes with a selfie three-shot trading card randomly selected out of six kinds.