Candice (one of the songwriters on Lotus) with Jeri (Xtina's choreographer) at the party
I feel like this is a downgrade from last year's pirate costume:
Source 1: http://www.justjared.com/2012/10/28/christina-aguilera-halloween-party-with-matthew-rutler/
Source 2: https://twitter.com/candicepillay