 Complete the following phrase:  Ukraine participated in the Eurovision Song Contest 2021 with the song Shum written by Kateryna Pavlenko, Taras Shevchenko and Ihor Didenchuk. The song was performed by Go_A, who were announced by the Ukrainian broadcaster National Public Broadcasting Company of Ukraine UA:PBC as the Ukrainian representative for the 2021 contest on 18 March 2020 after they were due to compete in the 