Massive Attack at Open’er Festival powered by Orange 2025. The iconic, legendary, and timeless project, whose work has changed global music and culture, is the first Wednesday headliner. Also joining the line-up are Mother Mother, JPEGMAFIA, Brutalismus 3000, and Nemzz. Already announced acts include Linkin Park (Saturday headliner), Raye, Justice, RÜFÜS DU SOL, FKA twigs, and St. Vincent. This year's edition of the biggest festival in Poland takes place July 2-5 in Gdynia / Kosakowo.