Eminem collaborates with Dr Dre

Eminem is featured on 'I Need A Doctor', the first single from Dr Dre's final studio album.

In what appears to be a dialogue between the two rappers, Eminem raps: 'It's almost like you're begging for my help/Like I'm your leader, you're supposed to ****ing be my mentor/I can endure no more, I demand you remember who you are'.

The track is due out February 1st as a digital download and is set to feature on Dr Dre's final album 'Detox'.