Knowles catwalks through Vienna during an afternoon shopping trip. Plus: Jennifer Garner, Hugh Jackman, Julia Roberts and more

SCHOOL TIES

School is in session for Hilary Duff on Monday, who drops by L.A.'s Normandie Avenue Elementary School to raise awareness for the Blessings in a Backpack food program. The actress has been an active supporter for the nonprofit, which donates food to needy students.