Legendary heavy metal pioneers Black Sabbath will play its final concert in November at an Ozzfest event in Japan, Ozzfest organizer Sharon Osbourne announced in a video message Sunday.

"This will be Black Sabbath's farewell," Sharon, the wife of Sabbath singer Ozzy Osbourne, says in the video, which you can see below.

Ozzfest Japan will be held Nov. 21 and Nov. 22 at Makuhari Messe in Chiba, Japan. It isn't yet known on which date Sabbath will perform, or if it will play on both days of the festival.

Ozzy, guitairist Tony Iommi and bass player Geezer Butler reuinted to record and release the 2013 album "13," the band's first album of new material with Osbourne since he was fired from the group in 1979. Original drummer Bill Ward did not play on "13" or the subsequent concert dates; it is not known if he will return for Ozzfest.