Milan Fashion Week

Sporting smooth waves and bold red lips, Rachel Bilson (here with her stylist Nicole Chavez) added some Old-Hollywood glamour to the amfAR Milano benefit. Other stars supporting the cause included Janet Jackson, who served as an event chair for the inaugural fundraiser and Dita Von Teese, who treated the fashionable crowd to a special burlesque performance.

Kelly Rowland

was yet another fashion-loving star to jet from New York Fashion Week to Milan Fashion Week. The still-recognizable singer wore oversize shades and a black strapless dress at the DSquared2 Spring/Summer 2010 runway show.

Fresh from New York Fashion Week, actress Rachel Bilson jetted to Milan to attend Salvatore Ferragamo's Spring/Summer 2010 show. Looking chic in a navy and black Ferragamo ensemble, Bilson took a front row seat next to the designer's grandson James Ferragamo and his daughter.

Designer Donatella Versace joined singer Janet Jackson backstage after she debuted Versace's Spring/Summer 2010 collection. Since arriving in Milan last week, Jackson has taken in the Giorgio Armani and Vicini fashion shows.

Just two days after performing in New York at the VH1 Hip Hop Honors, Mary J. Blige attended the Gucci Spring/Summer 2010 show in Milan. The Grammy award-winning songstress has had a busy month, with the debut of her supporting role in Tyler Perry's I Can Do Bad All By Myself as well as appearances at the Toronto Film Festival and the Emmys.

The faces of D&G's newest Anthology fragrance collection, Naomi Campbell, Eva Herzigova and Claudia Schiffer (all in D&G) posed for photos and signed autographs at Milan department store La Rinascente. The trio was joined by Stefano Gabbana and Domenico Dolce for the launch event, which drew a crowd of 3,000.

After making a studious appearance at the Ralph Lauren show on the final day of New York Fashion Week, Miss Jackson followed the stylish set to Milan to preview Giorgio Armani's Spring/Summer 2010 collection.

Another world-famous star that lined the front row at the Giorgio Armani show was tennis great Roger Federer. The number one ranked tennis player and father of newborn twins headed backstage after the show to congratulate the designer.