The first ever Ozzfest Japan has beefed itself up with more big name headliners including Deftones, Tool and Stone Sour.

We previously reported the first ever Ozzfest-Japan will feature big name headliners Black Sabbath and Slipknot. The festival’s lineup just got bigger with the additions of Tool, Deftones, Stone Sour and Slash. The festival takes place Saturday May 11th and Sunday May 12th at the Makuhari Messe arena outside of Tokyo. In a press release Sharon Osborne said, “we still have plenty of surprises to come. The Ozzfest Japan lineup will rival any of our previous festivals.”

Ozzfest Japan Lineup:
Black Sabbath
Slipknot
Tool
Deftones
Slash
Stone Sour