[5][6][7] In January 2021, together with the leader of the Kalush band Oleh Psiuk, they presented their joint track "Otaman".
[8] In May, they released their joint song "Dodomu", which hit the YouTube trends, top charts on Shazam, Spotify, and iTunes.
[9] In July, Kalush and Skofka released a joint EP "Yo-Yo" and a new track "Ne napriahaisia" (Don't Stress).
[10] In the fall of 2021, the singer Kola presented the song "Ba", released in collaboration with Skofka.
The latter of these works was dedicated to his friend Valentyn Konovodov, who died defending Ukraine from Russian invaders.