Last Night's Parties: Katy Perry Performs At The UNICEF Snowflake Ball, WWD Hosts The Footwear News Achievement Awards & More!

by Gautam Balasundar · December 4, 2013

9th Annual UNICEF Snowflake BallJessica Simpson, Eric JohnsonKaty Perry Harry Brant, Louis Leeman, Erica Pelosini, Peter Brant

Last night in NYC, stars came out to the UNICEF Snowflake Ball at Cipriani where Katy Perry performed, Jessica Simpson and Olivia Palermo joined Vince Camuto at the WWD Footwear News Achievement Awards, Liv Tyler launched her new book at Stella McCartney, James Murphy helped kick off the WIRED Pop-Up store, and so much more!