Eminem's "Curtain Call" gets longer; 2nd disc with collaborations

Eminem's Curtain Call just got a little longer. The album will be available in a special two-disc edition that beefs up his collection of greatest hits with a disc devoted to his memorable collaborations. A final track list has yet to be hammered out, but expect to find Em's landmark duet of "Stan" with Elton John in the mix. The set will also feature three new tracks, including the single "When I'm Gone,".