Kristen Stewart 82615951_8.jpgJoan Jett photo courtesy of Getty Images

We def didn't see this one coming! According to The Hollywood Reporter, "Twilight" star Kristen Stewart will portray Joan Jett in "The Runaways," a biopic about the rock star and her famous 1970s all-girl band.

The movie is scheduled to start shooting early next year, and production will work around Stewart's commitments to the two "Twilight" sequels.

Think Kristen has what it takes to play Joan Jett? We can't wait to see her hair and makeup for the role, that's for sure!