Chart facts as streaming is introduced to the UK top 40

From next month if a song is streamed online it'll count towards the tracks chart position.

The Official Charts Company, which compiles the UK charts, says the move is to reflect how people are now consuming music.

Only audio streams are being counted.

A song must be played for a minimum of 30 seconds on Spotify, Deezer, Napster, O2 Tracks, Music Unlimited, Zune or Rara.

This is being seen as the most significant change to the charts make-up since downloads were included 10 years ago.

Take a look at some of the tracks that have made chart history.

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