A different recording was used each season. Versions, in series order, were recorded by The Blind Boys of Alabama, Tom Waits, The Neville Brothers, DoMaJe, and Steve Earle. Season four’s version, performed by the Baltimore teenagers Ivan Ashford, Markel Steele, Cameron Brown, Tariq Al-Sabir and Avery Bargasse, was arranged and recorded specifically for the show.[4]
The wire
(Written by Tom Waits)
Each season had a different version
https://en.m.wikipedia.org/wiki/Way_Down_in_the_Hole