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Christina, we don't know whether to laugh or cry...
The singer stopped by the Los Angeles County Museum of Art's soirée in an Atelier Versace Champagne-coloured plunging dress that perfectly showed off her new, curvier physique. The mother-of-one has swapped her toned abs for a more natural, womanly figure - and we think she looks great.
But while the gold bead embellished gown might have screamed screen siren, Christina's liberal application of tan and frosty pink lipstick tipped the look from belle of the ball to Barbie doll. What do you think? Leave a comment below and let us know.