<page_title> List of best-selling singles </page_title> <section_title> 15 million copies or more </section_title> <table> <cell> Mariah Carey <col_header> Artist </col_header> </cell> <cell> 16 <col_header> Sales (in millions) </col_header> </cell> </table>
With sales of 16 million copies, Carey's All I Want for Christmas Is You is the one of the best-selling singles.