Idol kayo is a style of Japanese pop music that emerged in the 1960s and 70s. It features catchy melodies, upbeat rhythms, and sentimental lyrics that often reflect on love and relationships. The performers are typically solo artists or small groups, and they often wear colorful, flamboyant costumes. Idol kayo is known for its nostalgic appeal and its ability to evoke feelings of joy and happiness in listeners.