If one festival definitely has their shit together, its Wacken Open Air. Every year, the festival sells out basically a year in advance and it's easy to see why. They know what their fans want and they give it to them.
The 2019 iteration of the fest is just on its final day as I write this and already they have made some massive announcements for the 2020 festival. I mean look at this flyer:
So, we got the 50th anniversary celebration of Judas Priest and Amon Amarth as headliners. Then, it looks like Sodom is playing Agent Orange and At The Gates is playing Slaughter of the Soul. Plus, we got a Mercyful Fate reunion, Hypocrisy (who crush it live), Death Angel, Venom, Sick of it All, and more.
Just these bands alone are a can't miss lineup, imagine who else is added?
Tickets go on sale seven hours after this story is published. Better hurry! Get 'em here.