KRISTEN STEWART Guitar marathon for 'Twilight' star

KRISTEN STEWART: The actress was brushing up on her guitar skills.

'Twilight' star Kristen Stewart has been brushing up on her guitar skills in preparation for a new film role. The young beauty, who is rumoured to be juggling the affections of co-star Robert Pattinson and boyfriend Michael Angarano, spent nine hours in a studio in North Hollywood brushing up on her skills. Wearing a 'Nuns With Guns' hoodie, the beauty seemed a bit shy - running straight to her car after learning to play the guitar for her upcoming role in 'The Runaways'.