Developments in technology have transformed music videos which have been around since the 1920's into what we see today. 

• 1929, jazz singer Bessie Smith starred in a short promotional film called St. Louis Blues, featuring her songs. It was so popular, it was shown in cinemas until 1932.

• 1960's, The Beatles began to feature their music in their own films, which helped album and single sales.

• 1970, the record industry realised TV shows could be a way to promote a band, so began to use them to show music performances and videos.

• 1975 brought Queen's Bohemian Rhapsody, which used advanced techniques that no-one had ever seen before.

• 1981, MTV, the first music video-only TV channel in the world was launched.

• 1983 Michael Jackson's Thriller was the most anticipated music video of all time. The 14-minute long short film, was, at the time, the most expensive music video ever made, and is now known as the music video that changed the face of the record industry.

• 1985 The rise of using intertextuality really began, with the release of Madonna's Material Girl featuring scenes used in Diamonds Are A Girl's Best Friend, featuring Marilyn Monroe.

• 1992, the rise of using famous directors to make music videos, with the likes of Martin Scorsese, Spike Jonze and Mark Romanek beginning to direct big-budget short films.

• 1995, Romanek directed Scream, by Michael & Janet Jackson, and in doing so, created the world's most expensive music-video, at a cost of $7m.

• 2005 Videos really changed, with the creation of YouTube and the iTunes Music Store, where videos were suddenly accessible to all, anywhere, 24 hours a day. People could now purchase videos, and carry them wherever they go.