The Defis band has performed on the stage of Gospoda Rycerska near Grunwald twice: at the commencement and conclusion of the 2017 Carnival, playing songs like the 2015 Summer Hit “Niespotykany kolor oczu masz”, and “Jeden gest”, “Lek na życie” and “Wciąż o Tobie mam sny”. Being only 22 years old, the group’s leader Karol Zawrotniak is already one of the brightest disco polo / dance stars.