Open'er 2027 adds Chemical Brothers, Ellie Goulding and more

Open'er Festival has added The Chemical Brothers, Ellie Goulding, ADÉLA, 5 Seconds Of Summer and Underscores to its 2027 bill. The event is scheduled for Gdynia, Poland, from June 30 to July 3. The Chemical Brothers will headline the Orange Main Stage on July 1, 25 years after they topped the festival's first edition in 2002.
Open’er 2027 will take place in Gdynia, Poland, across June 30–July 3. The newly confirmed acts join Tame Impala, Sombr, The Neighbourhood, RAYE and the Patti Smith Quartet. The Chemical Brothers headline the Orange Main Stage on July 1, returning 25 years after their 2002 inaugural headline set.
Ellie Goulding plays July 3 after releasing sixth album I Know Too Much. ADÉLA performs July 2 following debut PRIMA. 5 Seconds Of Summer appear July 1 after EVERYONE’S A STAR!, while Underscores plays the Alter Stage on July 3. Tickets are available via the festival’s official site.
The announcement may strengthen Open’er’s appeal across generations, pairing veteran electronic headliners with newer pop and hyperpop names. Fans in Poland and abroad could plan travel around the July dates, potentially benefiting Gdynia’s hospitality and live-music sectors. For artists like ADÉLA and Underscores, festival exposure may widen audiences beyond existing listeners. The Chemical Brothers’ return could also renew interest in their catalogue, though any broader cultural or economic effects would depend on attendance, media coverage and the final lineup.