They, and the rest of the additions, will join headliners Sufjan Stevens, Tame Impala and The War On Drugs at Larmer Tree Gardens on 4-6 September.

In honour of their 25th birthday, Heavenly Records will curate the Garden Stage: Lanegan will take the top slot, Saint Etienne will perform seminal '91 LP Fox Base Alpha in full (both their and Heavenly's first ever record), with Stealing Sheep, Eaves and H. Hawkline also performing.

My Morning Jacket will be playing the UK for the first time since 2011.

The lineup additions in full comprise: My Morning Jacket, Mark Lanegan Band, Saint Etienne, GIANT³ SAND, Ex Hex, Joanna Gruesome, Frazey Ford, Marika Hackman, Curtis Harding, Kevin Morby, The Duke Spirit, Stealing Sheep, Du Blonde, Houndstooth, Wand, Girlpool, Diagrams, H. Hawkline, Eaves, Jacco Gardner, Andy Shauf, Andrew Combs, Black Tambourines, Flo Morrissey, R. Seiliog and Mark Wynn.

For ticket details and packages, head here (no booking fees!), and for more information about the lineup or the festival in general, head here.