Music videos originated in the late 19th century as promotional films for songs. In the 1980s, MTV launched and based their format around music videos, popularizing the medium. Modern music videos are primarily made and used as marketing to promote music sales. Key developments include Louis Jordan making short films for songs in the 1940s, Top of the Pops playing music videos in the 1970s in the UK, and MTV playing The Buggles' "Video Killed the Radio Star" as the first music video in 1981. Music videos now feature advanced technology, special effects, and often tell stories to accompany songs.