MARTIN GARRIX, KNEECAP AND MATT BERNINGER JOIN OPEN’ER FESTIVAL 2026

Open’er Festival has added another run of artists to its 2026 lineup, which takes place 1–4 July in Gdynia, Poland.

The latest names include Martin Garrix, Kneecap, Matt Berninger, ¥ØU$UK€ ¥UK1MAT$U, and LP, joining a bill that already spans pop, alternative, electronic and hip-hop.

Martin Garrix is confirmed for a headline set, bringing his large-scale electronic show to Gdynia. Kneecap, one of the most talked-about live acts in recent years, will also appear, continuing a run of high-profile festival performances.

Matt Berninger, frontman of The National, joins the lineup following the release of his second solo album Get Sunk. His appearance marks one of the more understated additions to the bill.

Also announced are Japanese electronic artist ¥ØU$UK€ ¥UK1MAT$U, and singer-songwriter LP, whose work has crossed pop and alternative audiences. These artists join a previously announced lineup that includes The Cure, Calvin Harris, The xx, Nick Cave & The Bad Seeds, David Byrne, Halsey, Clipse, PinkPantheress, Renee Rapp, Addison Rae, Ethel Cain, Zara Larsson, Jade, IDLES, Teddy Swims, Audrey Nuna and The Afghan Whigs, with more acts still to be announced.

Tickets are on sale now at https://opener.pl/en/tickets