Lily Collins: Lena Headey Joins 'Mortal Instruments'

Lily Collins heads out of Whole Foods after picking up some groceries on Sunday (July 22) in Los Angeles.

The 23-year-old actress also stopped at a Target store to shop for some new clothes.

PHOTOS: Check out the latest pics of Lily Collins

It was just announced that Game of Thrones‘ Lena Headey and Mad Men‘s Jared Harris will be joining Lily and her rumored new beau Jamie Campbell-Bower in The Mortal Instruments, according to The Hollywood Reporter.

10+ pictures inside of Lily Collins shopping on Sunday…