[Photos by BILLY FARRELL for PMc]

Last night, the Oak Room at the Plaza was full for "Snowflake Lighting", a big party thrown by Gucci and UNICEF along with Rihanna. Madonna showed off her buff body underneath a fun concoction of amber green feathers. Other guests included:

More story and photos below:

Mary J. Blidge, Frida Giannini, Becki Newton, Rihanna, Adrian Grenier, Anja Rubik, Penn Badgley, Charlotte Ronson, Eleanor Ylvisaker, Shoshanna Lonstein Gruss, Dave Biro, Daniella Vitale, Erin Wasson, Jessica Joffe, Julia Restoin Roitfeld, Lizzie and Jonathan Tisch, Monet Mazur, Natasha Poly, Patricia Field, Timbaland, and Monique Idlett among others.

Charlotte Ronson, Eleanor Ylvisaker, Shoshanna Lonstein Gruss