No, it doesn't say anything about length.
But it will probably be at least the length of a normal concert (2,5 - 3 hours) or she wouldn't even got a seperate date to begin with.
I wonder - all those collab guests, will they get time to perform own songs as well? I thinl so or it would be a bit of a waste. With that the date might be even longer than 3 hours.
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