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Kate Beckinsale KBeckinsale062308_05_X17.jpgKate Beckinsale sure does know how to accessorize an outfit!

For the second day in a row, we saw Kate wearing her signature black, but carrying the fluorescent green Marc Jacobs Stam bag.

This has got to be one of the hottest bags in one of the season's hottest new colors.

Leave it to fashion-plate Kate to be one of the first celebs we've seen sporting it!