Pop Music History Facts and Timeline
themusichistory.com › pop-music-history-facts-and-timelinePop Music History Facts and Timeline. The definition of pop music is purposefully flexible as the music that is identified as pop is constantly changing. At any particular point in time it may be easiest to identify pop music as that which is successful on the pop music charts. For the past 50 years the most successful musical styles on the pop charts have continually changed and evolved.