Nas released Run The Jewels’ 2014-defining RTJ2 on his Mass Appeal label, and Zack De La Rocha guested on highlight-of-highlights “Close Your Eyes (And Count To Fuck).” Now it appears both those ’90s legends are back in the studio with Killer Mike and El-P. As CoS points out, early this morning El-P posted a group photo to Instagram (visible above) with the caption “this happened.” It’s unclear whether all four rappers are going to appear on a track or which project they’re even working on — there were rumors of a De La Rocha solo album, after all — but the whole thing is almost as exciting as the sight of Kendrick Lamar in a room with the RTJ crew last month. Check out that image below and let your imagination run wild.

OH DIP

A photo posted by thereallyrealelp (@thereallyrealelp) on Jul 25, 2015 at 6:45pm PDT

Read our Run The Jewels cover story.