The Black Sabbath frontman died after suffering a heart attack on July 22, just weeks after performing his final concert.

Singer Kelly Osbourne, the daughter of rocker Ozzy Osbourne, checked herself into "a medical facility to address some personal issues," her London publicist confirmed Friday.

The documentary titled "Coming Home," which emerged as a project following the deteriorating health of the music legend, was filmed to capture the last three years of his life.