With their full faces on, Christina Aguilera and Kim Kardashian glammed out together in NYC last night.
Chris & Kim partied at the hotspot Avenue for Xtina's "Bionic" record release party -- along with Selita Ebanks and Serena Williams -- and we're told the duo was "inseparable."
The gorgeous 29-year-old divas didn't get Dirrty.
