The Japanese music industry is one of the largest and most influential in the world. With a market size of over $20 billion, it is home to various genres, including J-pop (Japanese pop), J-rock (Japanese rock), and enka (ballad singing). Japanese music is characterized by its unique production system, where artists are often trained and managed by large entertainment companies like Avex Trax, Universal Music Japan, and Sony Music Entertainment Japan. Idol groups like AKB48, Arashi, and Morning Musume have achieved immense popularity not only in Japan but also internationally.