Kristen Stewart Jams with Joan Jett

Covered in a gray hoodie, Kristen Stewart waits up for rocker Joan Jett as they arrive at Sunset Sound studios in Los Angeles on Monday afternoon (June 15).

Kristen and Joan were also joined by Dakota Fanning. Stella Maeve or Alessandra Torresani still haven’t been spotted yet.

The Runaways tells the story of the 1970s teenage rock band responsible for hits songs like “Cherry Bomb” and “Born to Be Bad.”

10+ pics inside…