For any of you wondering (which is no one) it says

"There will come a solider
Who carries a mighty sword

He will tear your city down
O'lei O'lai O'lord

O'lei O'lai O'lei O'lord

He will tear your city down
O'lei O'lai O'lord"

And it's from a song called "Solider, Poet, King" by The Oh Hellos