<page_title> List of Billboard Hot 100 number-one singles of 2013 </page_title> <section_title> Chart history </section_title> <table> <cell> "When I Was Your Man" <col_header> Song </col_header> <row_header> April 20 </row_header> </cell> </table>
"When I Was Your Man" was on the US Billboard Hot 100 singles chart.