It's this song, but with lyrics changed to fit with homm. The band consists of Golec brothers, which sounds like Gnolec brothers (gnoll brothers - bracia gnolce). There is quite a lot of memes about them https://www.youtube.com/watch?v=8FH0RgEIZ1E

And here is the meme https://www.youtube.com/watch?v=lXxUPo9tRao

https://www.youtube.com/watch?v=6GCng7cjJ7M

Anyway, the thing is, he got nominated to the rap challenge as a joke. The challenge was started because the government isn't taking the pandemic seriously enough, instead of buying proper equipment for the hospitals they are wasting money on useless stuff.

They don't ask your name, they fight with a sharp shadow of the fog x3
It is May
Saska Kępa (part of Warsaw) doesn't smell nice
Maybe someone somewhere has foreseen it
But the augury is rather dull
They don't ask your name, they fight with a sharp shadow of the fog x3
Sharp sky, here and now
Sharp soil, sharp dust
Yesterday disappears into the darkness
Tomorrow, today, soon, now.
They don't ask your name, they fight with a sharp shadow of the fog x3
Warm evening, no darkness
Grass, calm, we and you
We and you
We are them, they are us
They don't ask your name, they fight with a sharp shadow of the fog x3
Strong arms of paramedics
Everyone together: Praise them
Everyone together: Praise them
Strong arms of paramedics
Everyone together: Praise them

Well, he does have a TikTok account

https://www.youtube.com/watch?v=DjDSUqTcrv4

Elo

Source: https://www.youtube.com/watch?v=Z55fM1P6284