Set against the sprawling greenery of Poznań’s Cytadela Park, BitterSweet Festival has quickly carved out an identity that thrives on contrast: both nostalgia and next-gen discovery, chart-topping pop and leftfield electronic, global icons and artists just beginning to bend the future in their image.
Returning for its second edition from 13th–15th August, BitterSweet brings together a stacked, carefully curated line-up that feels like a pop-cultural collision point. With headliners like Gorillaz, Twenty One Pilots, Robbie Williams and Lorde joined by a new wave that includes Ashnikko, Ciara and more, 2026’s edition feels built for discovery as much as it is for spectacle.
Here are a few artists you won’t want to miss.
Gorillaz
Few festival bookings feel as all-encompassing as Gorillaz. With ‘The Mountain’, their chart-topping, globe-spanning ninth album, they’re still pushing into new territory, pulling together sounds, voices and ideas from just about everywhere. That same energy carries into their live show, a full-scale pop show packed with guests, visuals and a setlist that jumps between eras without warning. It’s less a gig, more a moving universe (and one where anything could happen at any moment). Former Dork cover stars, they remain the blueprint for doing things your own way.
