Valleys of Neptune is a posthumous album by American rock musician Jimi Hendrix. Released in the United States on March 9, 2010, the album boasts "12 previously unreleased studio recordings," including the title track, "one of the most sought after of all of Hendrix's commercially unavailable recordings." The tracks on Valleys of Neptune were largely self-produced by Hendrix, and received extra posthumous production from Janie Hendrix, Eddie Kramer and John McDermott for Experience Hendrix, L.L.C. Recorded mostly in 1969 following the release of Electric Ladyland, the album predominantly features the original lineup of The Jimi Hendrix Experience: vocalist and guitarist Hendrix, bassist Noel Redding and drummer Mitch Mitchell. The lead single released from the album was "Valleys of Neptune", on February 1, 2010, followed by "Bleeding Heart" on March 1; music videos were produced for both songs.