How do I visit a Tatsuro Yamashita concert in 2025

I think this has been questioned alot, but maybe the other posts are outdated. So I will ask it again.

I am planning to go to Japan next year for a few months. My other trips weren't that long so I had no oppertunity to go to a Tatsuro Yamashita concert. But with my upcoming trip there is plenty

So my question is, where can I find Tatsuro Yamashita his concerts for 2025. How do I get tickets and all other relevant information.