PEOPLE's Week in Photos

The hottest celebrity news in pictures, including Usher, Bill Clinton, Mary-Kate Olsen, Britney Spears and more

BIGGEST FRESHMAN HEARTBREAK

As if leaving home to start college weren't enough, Mary-Kate Olsen and boyfriend David Katzenberg split up after nine months of dating, a source told PEOPLE. Mary-Kate moved to New York City with twin sister Ashley to begin classes at NYU Sept. 7. "It was a mutual parting of the ways," the source said. "It had more to do with school than anything else."



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