I Do I Do was released as the lead single from Secret's 3rd single album, Gift from Secret,
during the Christmas season of 2013. The song peaked at #15 on the Gaon chart and sold
over 200,000 copies. It was also released in Japan, where it debuted at #14 before plummeting
to #185 and dropping out of the chart.
What a Girl Wants was released as the third single from 4minute's first mini-album, For Muzik.
The song peaked at #6 and some sources estimate its sales at over 3.8 million.
