There are images of the Boss waiting on the side of the stage while the Trey Anastasio band plays, and a shot of Danny Clinch and Nils Lofgren.

Jeremy Allen White had a h-h-hungry heart on the set of the Bruce Springsteen ... music icon also signed autographs for fans gathered to watch the filming in Rahway (see photo below).

the Boss shared 10 behind-the-scenes pics by Rob DeMartin — starting with a toy panda bear wearing a “I Heard Bruce Might Show Up” T-shirt. Springsteen greets the bear in the next photo, and ...