[Kenza Fourati] [Hanneli Mustaparta] [Nora Zehetner, photos via BFA]

New Yorkers stepped out in their fashionable best for some philanthropic causes last night. We saw lots of concert-appropriate leather at the 12-12-12 Hurricane Sandy benefit concert. Meanwhile, Mia Moretti spun in style at the Jimmy Choo and DKMS "Gift of Life" celebration at the New Museum. Click through to see what she wore, as well as our other favorite looks of the night.