6: Former No.1 singles.
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This Week's Chart By Numbers (28th June 2015)

9. 6: Former No.1 singles.
Years & Years' 'King', Mark Ronson's 'Uptown Funk', Jason Derulo's 'Want To Want Me', Wiz Khalifa's 'See You Again', Omi's 'Cheerleader' and Jess Glynne's 'Hold My Hand'.