Eminem has revealed the details of the deluxe edition for "The Marshall Mathers LP 2," and it features a collaboration with Sia.
The bonus disc for "MMLP2" features five tracks, adding to the 16-track standard edition for 21 songs total, SPIN reports.
Sia, the subject of this week's Billboard cover story, will take a supporting role on the song "Beautiful Pain," while British blues rocker Jamie N Commons takes a turn on "Desperation."