The song, “This Is It,” is from the upcoming flick of the same name detailing Jackson’s dress rehearsals for the shows the King of Pop was scheduled to perform in London. That is, until Jackson’s June 25 death made those shows the ultimate concerts that would never be.

According to Sony Music, “This Is It,” will debut midnight Sunday on MichaelJackson.com, and features backup vocals by Jackson’s brothers. The movie, “Michael Jackson’s This Is It,” debuts in theatres for a limited, two-week run Oct. 28.

For more information, please click here for MichaelJackson.com.