In the next month, metal legends Black Sabbath may be playing their final North American tour dates ever. If bassist and original band member Geezer Butler is to be believed, the current Reunion Tour will likely be the last in the band’s storied history. Sabbath first performed in the U.S. in 1971.

“It probably will be the last time, will probably be the last tour. But I want to go out on a high. The band is playing really well at the moment.” -Geezer Butler

There are currently just 7 of 20 shows remaining on the North American leg of the Black Sabbath Reunion Tour. The average price for the west coast dates is $185. The least expensive remaining show is this Saturday, 8/24 at the Gorge Amphitheater in Washington, averaging $142. With an average price of $226, the most expensive show is the final North American show on 9/3 at the Los Angeles Sports Arena. Following a Latin American leg, 16 European dates end with what could be Black Sabbath’s final shows ever, in their hometown of Birmingham, England on 12/20 and 12/22.

The Reunion Tour supports the band’s recent album 13. Released on 7/10, 13 is Black Sabbath’s first studio album with Ozzie Osbourne in almost 35 years. Ozzie’s brooding voice is once again backed by Butler and original guitarist Tommy Iommi in the album’s first single “God is Dead?”. The Prince of Darkness hopes his return will help metal fans forget his unflattering years as an MTV reality star. Metal fans have responded well thus far, giving Black Sabbath their first #1 album on the US Billboard charts.

The album also passed Bob Dylan for the longest time between #1 albums on the UK Albums Chart, with 42 years since the release of Paranoid and legendary rock anthem “Iron Man”. Ozzie has already voiced his hopes to reunite with original drummer Bill Ward and record new music. While Geezer Butler seems to think the end is near, with more new music, there may still be hope for more live Sabbath.

See the video for “God Is Dead?” below.