BABYMETAL plays Osaka on Friday, August 16th, and Tokyo on Saturday, August 17th, both at the Mountain Stage.
They are ahead of Bring Me the Horizon, who BABYMETAL know very well.
Mountain Stage is the 2nd largest stage for both Tokyo and Osaka.
Saturday for Tokyo sold out last month.
These maps are from last year, but they will likely remain very similar:
Here is BABYMETAL playing at the Mountain stage in Tokyo and Osaka in 2015
And for comparison, this was BABYMETAL playing at the Marine stage (headline stage) in Tokyo in 2017 (it’s a stadium) and Osaka’s Ocean stage (also headline stage)