Suddenly  the idea of traveling to Japan this coming May seems more tempting. That’s because the first ever Japanese edition of Ozzfest’s lineup just got some major additions. It was announced this past weekend that headliners Black Sabbath and Slipknot will be joined by Tool, Deftones, Slash and Stone Sour.

Slash and Deftones will be performing with Slipknot on May 11, while Tool and Stone Sour will join Black Sabbath on May 12. Granted, unless you’re already in Japan or planning to travel, this won’t affect you too much. And it still doesn’t indicate whether the once king of touring festivals will return to the U.S. Still, the idea of seeing Black Sabbath and Tool on the same stage would excite any metal fan. Plus, it gives us hope that Tool might have more in the works (like releasing a new album already). And while the Tool and Deftones are playing on different days, there’s still an off chance that Maynard Keenan will join Deftones to perform “Passenger.”