Robbie Williams to headline BitterSweet Festival in Poznań! New acts added to line-up

Robbie Williams has just been announced as the third headliner of BitterSweet Festival. The British pop icon joins the line-up of the Poznań festival, which will take place at Cytadela Park in Poznań between August 13th and August 15th. Also revealed today are Jessie J, Leisure, Giant Rooks, and the first Polish artists on the bill – Mrozu and Sobel. They will perform alongside previously announced acts including Gorillaz, Twenty One Pilots, Lorde, Major Lazer, and Tom Odell. Single-day tickets, full passes, and the current schedule are available at www.bittersweetfestival.pl.

A mysterious pink telephone placed in the city center, paired with an equally cryptic voice message coming through its receiver – a female voice quoting fragments of lyrics from the third BitterSweet 2 headliner’s biggest hits. This unconventional move quickly spread across social media, teasing the announcement of more acts set to perform at Cytadela Park in Poznań in mid-August.

A pop offensive at its finest – Robbie Williams and Jessie J!

The sweet anticipation surrounding the third headliner of BitterSweet 2 has turned into a promise of a return to the ’90s and 2000s – a music period dominated by Robbie Williams. A British pop icon, the voice behind countless hits and emotional ballads, will take us on a nostalgic journey on August 15th. Are you ready for a throwback to the ‘90s and 2000s? It’s so bitter, it’s so sweet!
In the musical empire he’s built over the decades (solo and with Take That), you’ll find everything we love most about pop music – tear-jerking ballads and dancefloor beats. Houston, do you hear us? ’Cause you’re keepin’ me up all night!

An already strong Thursday line-up is now enriched by another major mainstream act – Jessie J. Pop, R&B, a love for soul, a powerhouse voice, and a confident stage presence mixed with a great sense of humor – that’s her recipe for success. A decade ago, we were all singing “Price Tag” and now we are dancing with her to “Living My Best Life”, because no one knows better how to turn it around and kiss away the fear.

Good mood has many sounds – Leisure and Giant Rooks at BitterSweet 2

A refreshing shift in tone comes with New Zealand’s Leisure. Welcome to the mood! Melancholy? Present. Gently pulsing beats? Check. Perfect sounds for sundown? Absolutely, yes! Leasure are joining BitterSweet Festival and invite you to a laid-back set filled with New Zealand chill on August 14th! This is something you must experience! Blue sky up ahead, I’m about to explode on the inside.

Another shade of sweetness and bitterness in the BitterSweet 2 line-up is brought by German band Giant Rooks. What happens when cousins team up with their school friends to start a band? You get the explosive indie-rock blend named Giant Rooks, performing on August 15th at BitterSweet Festival! Their version of “Tom’s Diner” went viral on TikTok, and their studio albums have taken them to the biggest European festivals. Time is a gift, praying for the fog to lift, they sing – and we already know we’re in for a feast.

A local touch – Mrozu and Sobel open the Polish chapter

If not us, then who? We’re breaking the bank as the night shift takes over – Mrozu on Friday at BitterSweet2! Time to fly too high and too far. For over 15 years, he’s remained a constant player on the Polish music scene, proving that there’s always a perfect moment to surprise with a new sound. “Zew” took him onto wide waters, and two years later we all felt his “Aura” as the waves began to resonate. We’re already dusting off our dancing shoes!

Don’t tell anyone, it’ll spread on its own. Sobel, on August 15th at BitterSweet Festival! He’s been making noise since his debut days: his tracks rack up millions of streams, his albums earn diamond and platinum certifications, and he keeps landing nominations for Poland’s biggest music awards. Hit us up when you’re there – Sobel’s popping in on Saturday to throw a party!

Time flies – see you in August!

The second edition of the festival, whose last year’s debut made a strong impact, will take place from August 13 to 15, 2026, at Cytadela Park in Poznań. Among the already announced artists are Gorillaz, Twenty One Pilots, Robbie Williams, Lorde, Tom Odell, Major Lazer, Rita Ora, Jessie J, Chet Faker, Faithless, and Paul Kalkbrenner. More information and tickets are available at www.bittersweetfestival.pl.

It is also worth following the publications on the festival’s Instagram and TikTok channels to stay up to date with further information – accompanying events and unusual activities.

Festival schedule:

13.08.2026 – Gorillaz, Lorde, Paul Kalkbrenner, Meute, Becky Hill, Charlotte Cardin, Jessie J + more to come

14.08.2026 – Twenty One Pilots, Tom Odell, Rita Ora, Alok, Chet Faker, Mrozu, Parcels, Ashnikko, Leisure + more to come

15.08.2026 – Robbie Williams, Major Lazer, Giant Rooks, Faithless, Sobel + more to come