It has sold a total of 1,735,000 copies in the US as of August 2013 .
Jackson 's This Is It album was the twelfth best - selling of 2009 , having sold an estimated 1.29 million units in nine weeks .
This Is It has sold a total of 1,735,000 copies in the US as of August 2013 .
Jackson 's This Is It album was the twelfth best - selling of 2009 , having sold an estimated 1.29 million units in nine weeks .