Last month we brought you news that rapper Eminem was working on a new album. The long-rumored album was all but confirmed by Dr. Dre, a long-time collaborator and producer for Eminem.

Now it seems that Eminem may have brought in a rather unique collaborator: comedian Chris Rock. Late last week The Daily Loud posted a photo of the two in the studio together on Twitter:

In a recent appearance on The United States of Hip Hop Rock confirmed that he had been in the studio with Eminem, but declined to say what his role in the new album would be.

The new album will be Eminem’s seventh studio album, and his first since 2010’s Recovery.