2U David Guetta feat. Justin Bieber
Eminem and Dr Dre are rumoured to be opening the Grammys ceremony on February 13th.
Billboard have reported the rumour that the duo will perform together, presumably on a version of Dr Dre's new single 'I Need A Doctor'.
The Grammys will also see Rihanna pairing up with Drake and Cee-Lo Green dueting with Gwenyth Paltrow and a cast of Muppets.
Last year's ceremony saw Lady Gaga join forces with Elton John for a duet.