This Is It slightly outsold Jackson 's first - week sales of his previous album Invincible which sold 366,300 units in 2001 .
This Is It , which also debuted at number one on Billboards Soundtrack chart , marked Jackson 's sixth number one entry on the chart .
This Is It slightly outsold Jackson 's first - week sales of Jackson 's previous album Invincible which sold 366,300 units in 2001 .
This Is It , which also debuted at number one on Billboards Soundtrack chart , marked Jackson 's sixth number one entry on the chart .