<page_title> List of best-selling singles </page_title> <section_title> 12–14.99 million copies </section_title> <table> <cell> "Somebody That I Used to Know" <col_header> Single </col_header> </cell> <cell> 13 <col_header> Sales (in millions) </col_header> </cell> </table>
The song, "Somebody That I Used to Know" has sold 13 million copies worldwide.