Talented Grammy nominated producer Alex Da Kid was interviewed, question and response below:
Skylar also features on Dr. Dre and Eminem’s “I Need A Doctor.” Can you clear one thing up about that song—is it meant for Dre’s long-awaited Detox or will it feature on a re-release of Eminem’s Recovery?
A: That’s for Detox. I can’t really talk too much about it, but, yeah—that’s for Detox.
Source and full interview - http://idolator.com/5723052/alex-da-kid-the-idolator-interview