Hours after Lamb of God covered Black Sabbath’s "Children of the Grave" at Ozzy Osbourne’s farewell concert, the band released a studio version of the track.

Black Sabbath performed “War Pigs,” “N.I.B.,” “Iron Man” and “Paranoid” — while Osbourne, 76, also performed solo songs such as “I Don’t Know,” “Mr. Crowley,” “Suicide Solution,” “Mama, I’m Coming Home” and “Crazy Train.”

Ozzy Osbourne took his final bow after reuniting with the original lineup of Black Sabbath to play a farewell concert before a crowd of over 40,000: 'Thank you from the bottom of my heart.'