More evidence comes in today that Jay-Z is busy in the studio working on new material. 

We've seen him with Rick Ross, DJ Khaled, and Timbaland, as well as with Timbaland and Mike WiLL Made It, but this time a photo has surfaced of Hov and the Chef in the studio last night.

No word on the specifics of what Raekwon and Jay-Z were working on, but peep the photo above.