With two identical purses – one for "cousin" Alli Sims – Spears comes prepared to shop in West Hollywood. Plus: Angelina & Maddox, Jessica Alba and more

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SHOWSTOPPERS

After bringing down the house with a rendition of "It's a Man's World," Mary J. Blige and Usher share a hug onstage at Thursday's Fashion Rocks Concert. The duo later joined their spouses, her husband Kendu Isaacs and his wife Tameka Foster, at the Rainbow Room.

See all the best-dressed stars at Fashion Rocks here.

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