Oleksandr Usyk used to enter to the ring under their song "Yikhaly Kozaky" (Cossacs went home) - https://www.youtube.com/watch?v=b0H6wS5L1K4
But they also have lot more great songs:
Arey's Sword - https://www.youtube.com/watch?v=KtKaXc_AEF8
Thunder and Fire - https://www.youtube.com/watch?v=B3b96JL2NGk
The Sun Man - https://www.youtube.com/watch?v=cdaeiBSIwB8
The Road To The Wood - https://www.youtube.com/watch?v=ujvxJ2pyUs4
Never Cry - https://www.youtube.com/watch?v=mrmRfEtBDPQ
Chugaister's Song - https://www.youtube.com/watch?v=IjhBE69wSGg
Windmill - https://www.youtube.com/watch?v=HhxOpOcEn7w
People's war - https://www.youtube.com/watch?v=aKGiM_upWjU
Good Angel - https://www.youtube.com/watch?v=aL4bT3XYoR8
But they also have lot more great songs:
Arey's Sword - https://www.youtube.com/watch?v=KtKaXc_AEF8
Thunder and Fire - https://www.youtube.com/watch?v=B3b96JL2NGk
The Sun Man - https://www.youtube.com/watch?v=cdaeiBSIwB8
The Road To The Wood - https://www.youtube.com/watch?v=ujvxJ2pyUs4
Never Cry - https://www.youtube.com/watch?v=mrmRfEtBDPQ
Chugaister's Song - https://www.youtube.com/watch?v=IjhBE69wSGg
Windmill - https://www.youtube.com/watch?v=HhxOpOcEn7w
People's war - https://www.youtube.com/watch?v=aKGiM_upWjU
Good Angel - https://www.youtube.com/watch?v=aL4bT3XYoR8