LOS ANGELES, California (X17online) - 'New Moon' co-stars Kristen Stewart and Dakota Fanning may have wrapped on the 'Twilight' sequel but they're still working together.

The pair were spotted Monday in Santa Monica where they are beginning rehearsals for 'The Runaways' a bio-pic about a girl band from the '70s led by Joan Jett.

Stewart will be playing Jett and described her feelings about playing the rock-and-roll icon as an "insane concept."

"I'm going to give it all I've got," Stewart said.

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