By InStyle Staff
Updated Sep 15, 2009 @ 9:30 am
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Fashion Week Day 5 - Marc Jacobs - Madonna
Credit: Fernanda Calfat/Getty; Charles Eshelman/FilmMagic; Billy Farrell/PatrickMcMullan

The night belonged to Marc Jacobs with Madonna front row at his show and Lady Gaga performing at his hot-ticket after-party. Plus Milla Jovovich at Donna Karan and new runway looks from Zac Posen, Carolina Herrera and more!