Carry On.

Stephen Stills has announced a career-spanning box set. Due March 26th, Carry On draws from his years in Buffalo Springfield and CSNY -- as well as his solo work. 25 of the 82 tracks have never been released.

The unreleased material spans "Travelin," which Stills recorded in Costa Rica when he was just 17, to "Girl From North Country," from the 2012 CSN world tour. Eric Clapton, Herbie Hancock and Maynard Ferguson are among the guest artists -- as is Jimi Hendrix, who recorded "No Name Jam" with Stills in 1970.