On 30 August 2025 at 7 p.m., a concert by the band De Mono will take place as part of the series Scena Letnia in Piaseczno. Admission free. Venue: Piaseczno, City Park ul. Chyliczkowska.

De Mono is a pop-rock band. Formed in 1984, the band's peak of popularity was in the late 1980s and the first half of the 1990s.

The band De Mono performs as follows:
Andrzej Krzywy - vocals,
Piotr Kubiaczyk - bass guitar,
Paweł Pełczyński - saxophones, percussion instruments,
Paweł Dampc - keyboard instruments,
Tomasz Banaś - guitars,
Zdzisław Zioło - guitars,
Marcin Korbacz - percussion.