WList of number-one albums of 2015 (Australia)WList of number-one singles of 2015 (Australia)WList of Canadian Hot 100 number-one singles of 2015WList of number-one hits of 2015 (Germany)WList of number-one hip hop albums of 2015 (Germany)WList of Inkigayo Chart winners (2015)WList of number-one singles of 2015 (Ireland)WList of Gaon Album Chart number ones of 2015WList of Gaon Digital Chart number ones of 2015WList of M Countdown Chart winners (2015)WList of UK R&B Albums Chart number ones of 2015WList of UK R&B Singles Chart number ones of 2015WList of UK Rock & Metal Albums Chart number ones of 2015WList of UK Rock & Metal Singles Chart number ones of 2015WList of UK top-ten albums in 2015WList of UK top-ten singles in 2015WList of Billboard Adult Contemporary number ones of 2015WList of Billboard 200 number-one albums of 2015WList of Top Country Albums number ones of 2015WList of Billboard number-one country songs of 2015WList of Billboard Dance Club Songs number ones of 2015WList of Billboard Hot 100 number ones of 2015WList of Billboard Hot 100 top-ten singles in 2015WBillboard Year-End Hot 100 singles of 2015
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