Japanese idol groups are musical ensembles typically composed of young performers, often teenagers or young adults, who sing, dance, and engage with fans. These groups are known for their polished performances and catchy songs, and they often participate in various media, including television shows, movies, and commercials. The idol culture emphasizes a close relationship with fans, who support their favorite idols through events and merchandise. Idol groups can vary in size and concept, ranging from small units to large formations like AKB48 and EXILE. Members often undergo rigorous training in singing, dancing, and public speaking. The idol industry is a significant part of Japanese pop culture, influencing fashion, trends, and entertainment.