The Wednesday lineup will be exclusive for limited numbers of festival goers.
2000trees will take place from 7th-9th July at Upcote Farm.
They join headliners Jimmy Eat World, Thrice, Turnstile and IDLES, as well as PUP, Rolo Tomassi, The Chats, Laura Jane Grace, and loads more.
The band follow up on yesterday's reveal of The Regrettes for the festival as part of the annual 7 Days of Trees campaign.
They're the latest act to be announced as part of the annual 7 Days of Trees line-up reveal, following Puppy, Calva Louise and Strange Bones.
They're one of a bunch of new acts announced today (Monday 29th November).
They join headliners IDLES, Jimmy Eat World and Thrice.
They're one of a batch of new names announced for the July event.
The bill for 2022 will include Jimmy Eat World, Thrice, The Amazons and more.
The (almost) full bill for the 7th-10th July Upcote Farm, Gloucestershire event was announced last summer.