Paris Fashion Week

Kate Bosworth and Katie Holmes joined Chanel designer Karl Lagerfeld for his party at the VIP Room.

Sporting a red chapeau, Salma Hayek made an appearance at Paris Fashion Week.

Fashion Week regulars Janet Jackson and Lenny Kravitz flank designer John Galliano, backstage at his show.

Demi Moore held on tight to husband Ashton Kutcher during the John Galliano show. The pair also caught the Lanvin show on Sunday.

Natalie Portman took a front-row seat next to famed photographer Mario Testino at the Lanvin show.

Kevin Costner and Kate Bosworth met up backstage at the Chloé show.

Katie Holmes, who attended the Chanel and Yves Saint Laurent shows, leaves her home base, the Ritz Hotel, for yet another fabulous fashion event.

Janet Jackson and designer Valentino get some face time backstage at the designer's fashion show.

Mary-Kate and Ashley Olsen caught the Christian Dior show.

Kanye West, who looked ready for Halloween in his skeleton sweatshirt, sat next to Paul McCartney at his daughter Stella McCartney's fashion show.

Blondes in black, Gwyneth Paltrow and Kim Cattrall attended the opening of the French linens boutique D. Porthault in Paris.

Lenny Kravitz and daughter Zoe attended several shows, including Christian Dior (above) and Chanel.

Pals Victoria Beckham and Katie Holmes shared the front row at the Chanel show.

Emmy Rossum looked stunning in a black Christian Dior dress, sitting in the front row at the line's spring/summer show.

Dita Von Teese arriving at the Christian Dior show.