Kozak System, a Ukrainian rock band, was formed in 2012 in Kiev by musicians
from Haydamaky. The band consists of Ivan Lenyo on vocals and accordion,
Oleksandr Demianenko on guitar, Volodymyr Sherstyuk on bass, Serhiy Soloviy on
trumpet, and Serhiy Borysenko on drums. Their debut concert took place in
Ternopil on May 20, 2012, and their first album, Sablja, was released later that
year. In 2014, Kozak System actively participated in the Euromaidán protests and
released "Brother for Brother", an unofficial anthem of the revolution. The band
has performed in over 18 countries, incl...