A new single "Crush" by Kzyboost is a talkbox player &producer will be released. It will be a talk box original song following "Rainy girl" released in 2020. "Modern Sweet" that depicts a sweet and sour and ephemeral love pattern by directing with a profound track and a smooth and melodious keyboard, and by entwining the unique tone and flow of the talk box with the lyrics that mix English and Japanese. The song is reminiscent of "slow jam". The artwork is handled by YOU BOB, who designed his albums "Callin'U" and "Keep Smoovin'".