Fashion Week keeps trucking along with lots of famous faces in the front row and backstage. Fresh from her Irvine show, Lauren Conrad had Lo Bosworth by her side today for Nanette Lepore, while Rachel Zoe joined Jennifer Lopez to support her recent favorite, Oscar de la Renta. The Gossip Girls went their separate ways — Blake Lively wore the designer joining Heidi Klum at Michael Kors, while Leighton Meester and a surprisingly normal-looking Juliette Lewis went out to see Phillip Lim. On top of her stop at Proenza Schouler on Monday, Mary-Kate Olsen brought along boyfriend Nate Lowman yesterday to check out her pal Benjamin Cho's collection. There are only two more days of fashion fun in NYC before things pick up again in London on Sunday.

Don't forget to check out all the news from the front row, as well as updates from Fab and Bella. To see over 50 photos from the shows, including Mary-Kate Olsen, Agyness Deyn, and Rachel Zoe, just read more.

Images include: Aerin Lauder, Agyness Deyn, Angela Simmons, Anna Wintour, Barbara Bush, Benjamin Cho, Bette Midler, Blake Lively, Elizabeth Banks, Emmy Rossum, Heidi Klum, Irina Lazareanu, Jennifer Lopez, Joy Bryant, Juliette Lewis, Lauren Conrad, Lauren DuPont, Leigh Lezark, Leighton Meester, Lo Bosworth, Lori Lively, Mary-Kate Olsen, Michael Kors, Nanette Lepore, Natasha Lyonne, Nate Lowman, Nicole Fiscella, Oscar de la Renta, Perrey Reeves, Rachel Zoe, Vanessa Simmons, Zoe Saldana

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