Last week a Eminem track leaked in which he's doing what were rumored to be Dre's verses as well as his own. The track, dubbed "Number One," by djs is actually called "Breaking Bottles" and sorry folks--it won't be on any of the 3-headed-monster's albums.
Per MTV News, according to a source close to the Shady/Aftermath camps, the record was never meant to make it off the cutting-room floor, and it's not currently scheduled to be on either Eminem's Relapse or Dr. Dre's Detox.