32 new acts have joined the bill today.
The youngest Haim sister will appear in the 1970s coming-of-age film alongside Cooper Hoffman, the son of late actor Philip Seymour Hoffman, and Bradley Cooper.
The September shows will now take place next June and July.
The film arrives in UK cinemas next month.
Set to take place on 22nd May, it will also feature Damon Albarn, Jorja Smith, Kano and Michael Kiwanuka.
It's taken from an expanded version of 'Women In Music Pt. III', that also includes a new take on '3AM' ft. Thundercat.
A TikTok post features the new version of the 'Women In Music Pt. III' standout playing on a car stereo.
A new version of 'Women In Music Pt. III' standout 'Gasoline' has been registered, featuring Taylor Swift.