2015

The new streaming era starts to upset the apple cart in all kinds of extraordinary ways. The biggest seller isn't always Number One, and some singles just want to stick around forever. Jess Glynne is the big breakout star of the year and the first whisperings of the tropical house era start to change the way pop music sounds. The singles chart changes again as Global Release DAy is introduced and publication moves to Fridays. As the year closes something else unexpected happens - Justin Bieber becomes cool.