Dark Wave, also written as Darkwave, is an umbrella term which refers to a movement that began in the late 1970s, coinciing with the popularity of New Wave and Post-punk music. Building upon the basic principles of those musical movements, Dark Wave evolved through the addition of dark, thoughtful lyrics and an undertone of sorrow. Dark Wave is inseparably connected with the stylistic developments of the late 1970s and the 1980s. In the 1980s a versatile subculture developed within the Dark Wave movement, whose members were called "wavers" or "dark wavers". In many countries, the Dark Wave movement also included the early Goth subculture (trad goth).