WList of number-one singles of 2012 (Australia)WList of number-one albums of 2012 (Australia)WList of Canadian Hot 100 number-one singles of 2012WList of number-one hits of 2012 (Germany)WList of number-one singles of 2012 (Ireland)WList of Gaon Album Chart number ones of 2012WList of number-one albums of 2012 (Mexico)WList of number-one albums of 2012 (Spain)WList of UK Rock & Metal Albums Chart number ones of 2012WList of UK top-ten singles in 2012WList of UK R&B Albums Chart number ones of 2012WList of UK R&B Singles Chart number ones of 2012WList of UK Rock & Metal Singles Chart number ones of 2012WList of UK top-ten albums in 2012WList of Billboard Adult Contemporary number ones of 2012WList of Billboard 200 number-one albums of 2012WList of Top Country Albums number ones of 2012WList of Billboard number-one country songs of 2012WList of Billboard Dance Club Songs number ones of 2012WList of Billboard Hot 100 number ones of 2012WBillboard Year-End Hot 100 singles of 2012
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