From the mailbag....

Yosef Peysin writes: 

We are Rogers Park, a Chicago-based Hassidic Folk/Pop band that just released this video today as part of the national NPR "Tiny Desk Concert" competition. 

This song is based off of the old Russian Chabad niggun - "Nyet Nyet Nikavo", which is the concept of "Ain Oid Milvado", and this is how we interpret it in English.

The song is called "The Holy One" 

Here is the link: https://www.youtube.com/watch?v=q6B2Jd1PBpM