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

THE BIG CHILL

Rihanna makes a perfect match with a young fan at the Reggae on the Hill festival Monday in Barbados's Farley Hill National Park. The R&B singer has been vacationing in her native country – and recently clocked some beach time with pal Katy Perry.