Indie music originally referred to music created independently from major record labels in the 1950s. It allowed artists to create and distribute their own music without interference. Over time, indie evolved from just meaning independent to becoming a genre in its own right, like indie rock and indie pop. Indie rock emerged in the 1980s in the UK and tends to have an angsty, guitar-driven sound. Indie pop also originated in the UK and lacks angst, being more melodic in style.