Morello, Springsteen and Vedder's version of "Highway To Hell" is the first taste of The Atlas Underground Fire, and in a statement, Morello explained of the AC/DC cover:
"We had played 'Highway To Hell' live a few times with Eddie Vedder on vocals when I was on tour with the E Street Band in Australia in 2014, so I began to wonder, what does the most ferocious version of this song sound like in 2021? I put together a pretty rocking demo and sent it over to Bruce and Eddie with my fingers crossed. This is what we got back: one of the greatest rock'n'roll songs of all time, sung by two of the greatest rock'n'roll singers of all time, and then I play a shredding guitar solo. Thank you and good night."
The project was the result of a "musical shutdown" for Morello in the midst of the COVID-19 pandemic. He explained, "Whereas the previous Atlas Underground record had a very strict manifesto of this alloy of Marshall stack guitar and bass drops with social justice ghost stories as the thread woven between, this record was basically a drowning man grabbing at a life raft. I was playing as if my life and sanity depended on it. These songs are really a product of this historical moment. They came out of a dark, anxiety-riddled period as a true musical beam of hope."
The Atlas Underground Fire is set to be released on October 15th.