Arriving at the stroke of midnight, the deluxe edition is a sprawling effort, spanning 36 songs and nearly 2 hours in running time. Marshall Mathers taps Dr. Dre, Ty Dolla $ign, Skylar Grey, and DJ Premier and many others for guest spots.
"Uncle Alfred heard you screaming for more... enjoy Side B," the hip-hop star tweeted.
Music To Be Murdered By gave Em his historic 10th No. 1 on the Billboard 200. Will Side B make it 11?