The UK Singles Chart is a record chart compiled by the Official Charts Company (OCC) on behalf of the British record industry. As of 10 July 2015, the chart week runs from Friday to Thursday with the chart-date given as the following Thursday. Before this, the chart week ran from Sunday to Saturday, with the chart-date given as the following Saturday.
Jess Glynne made chart history in 2015, scoring five number-ones in just 18 months; the fastest for a British female artist in the UK.
Canadian singer Justin Bieber achieved his first number one single in 2015 with "What Do You Mean?", which reclaimed the top spot twice after it initially reached the peak for a cumulative total of five weeks at number one.
Since April 1973, the British Phonographic Industry has been classifying singles by the number of units shipped or by sales. The highest threshold is "Platinum record" and is currently awarded to singles that have shipped or sold over 600,000 units.[d] From July 2014, BPI certifications (along with the Official Singles Chart) include audio streaming at 100 streams equal to one unit; these are referred to as 'combined sales' or 'chart sales'. So for example, "All of Me" by John Legend was certified double Platinum (1,200,000 combined sales) in October 2014 and became a million-seller in January 2015.
^ abcdefThe record labels are those given by the OCC.
^The number of sales required to qualify for Platinum, Gold and Silver discs was dropped in 1989 from the former thresholds of Silver (250,000 units), Gold (500,000 units), and Platinum (1,000,000 units) to the current thresholds of Silver (200,000 units), Gold (400,000 units), and Platinum (600,000 units).