Vinyl heads rejoice, Jay Z's Magna Carta Holy Grail is getting re-released on a 7" double vinyl set by Jack White & Third Man Records, who claim that the set comes with a hidden Jay Z track:

"Most exciting about this double LP is certainly the concealed postcard flexi disc hidden within the back cover and only accessible to those willing to take a knife to the iconic packaging. Once freed of its casing, this flexi disc plays a super secret hidden track. You'll just have to hear it for yourself, because we sure don't plan to ruin the mystery of it here."

Very intriguing. Hopefully by "hidden track" they really mean "unreleased track." Watch the promotional vid below. If you can't wait for the internet to leak the track, cop the set for $20 here.