The concert by Rufus T. Firefly in Zarautz has completely sold out two months before its scheduled date. This demonstrates the significant anticipation generated among both local audiences and fans traveling from various locations to attend the band's performance.

This event, organized by I Love Rock Kultur Elkartea in collaboration with the Zarautz City Council, has become one of the most prominent musical events of the season in the town. Public response has been consistent since tickets went on sale, with a rapid initial pace of acquisition that led to a full house several weeks in advance.

The interest in the concert reflects the band's current standing, considered a benchmark in the national independent music scene. With approximately 150,000 monthly listeners on digital platforms, the group, led by Víctor Cabezuelo and Julia Martín-Maestro, has built a solid career over two decades. Since its formation in February 2006, the project has developed a unique sound identity, characterized by meticulous production and a strong emotional charge in its compositions.

The band's name originates from the character played by Groucho Marx in the film Duck Soup, a detail that connects with their artistic imagery. Their discography includes works such as My Synthetic Heart (2008), their first full-length album, followed by the Spanish EP La historia secreta de nuestra obsolescencia programada (2011). Subsequent releases include Ø (2012), Grunge (2013), Nueve (2014), Magnolia (2017), Loto (2018), and El largo mañana (2021), leading up to their most recent release in 2025, Todas las cosas buenas.

The May 22 concert also features a unique format. Modelo Aretoa, with its limited capacity, will allow the audience to experience the band in a close and intimate setting, away from the large venues where they usually perform. This context offers a rare opportunity to experience the intensity of their live show in more contained conditions. The concert will begin at 8:00 PM, with doors opening at 7:30 PM.