<page_title> List of best-selling singles </page_title> <section_title> 15 million copies or more </section_title> <table> <cell> The Ink Spots <col_header> Artist </col_header> </cell> <cell> "If I Didn't Care" <col_header> Single </col_header> </cell> <cell> 19 <col_header> Sales (in millions) </col_header> </cell> </table>
The Ink Spots's "If I Didn't Care" sold 19 million copies.