Bruce Springsteen is back with new music. The "Born to Run" singer, 75, released Tracks II: The Lost Albums Friday, which includes 83 never-heard songs from seven previously-unreleased albums. "The Lost Albums were full records -- some of them even to the point of being mixed and not released.

The Boss' new box set organizes 83 previously unheard songs into seven distinct LPs, each with its own sound and theme.

After years of speculation and fan clamoring, Bruce Springsteen finally releases Friday “Tracks II: The Lost Albums,” an expansive seven-album box set and sequel to 1998’s “Tracks,” comprising decades of music — most of which is previously unheard by even the most devout Spring-nuts.