Alternative music is a broad genre that emerged in the 1980s and gained popularity in the 1990s. It encompasses a variety of styles that differ from mainstream pop and rock music. Artists in this genre often experiment with unconventional sounds, lyrics, and themes, making it a diverse and innovative field. Notable subgenres include grunge, indie rock, and post-punk. The term "alternative" originally referred to music that was an alternative to the commercial music scene. Bands like Nirvana, Radiohead, and R.E.M. helped define the genre, influencing countless musicians. Today, alternative music continues to evolve, incorporating elements from various genres and appealing to a wide audience.