Next month, Bruce Springsteen is releasing a new album, Letter To You. Three of the songs on the album date back to the ’70s, and in a new feature with Rolling Stone, Springsteen said that he rediscovered those tracks while going through his archives for a planned follow-up to his 1998 collection Tracks. Those archives contain various “lost albums” and other outtakes. The existence of a new archival Springsteen box set has been rumored for a while now, but this is the first time that Springsteen has confirmed it publicly.

“There’s a lot of really good music left,” he said in the interview. “You just go back there. It’s not that hard. If I pull out something from 1980, or 1985, or 1970, it’s amazing how you can slip into that voice. It’s just sort of a headspace. All of those voices remain available to me, if I want to go to them.”

The E Street Band drummer Max Weinberg told Rolling Stone that over the last few years he’s overdubbed at least 40 old songs in the studio. “Any other artist would kill to get these songs,” he noted.

Elsewhere in the profile, Springsteen talks about politics, something he’s been using his SiriusXM radio show to address over the last few months. “The power of the American idea has been abandoned. It’s a terrible shame, and we need somebody who can bring that to life again,” he said. “I think if we get Joe Biden, it’s gonna go a long way towards helping us regain our status around the world. The country as the shining light of democracy has been trashed by the administration. We abandoned friends, we befriended dictators, we denied climate science.”

Read the full profile here.