The 'Genie In A Bottle' singer welcomed daughter Summer Rain with fiancé Matthew Rutler on 18 August and, until now, has kept the little one under wraps.
This weekend, however, she treated fans to a glimpse of her little princess.
Christina uploaded an image to Twitter showing her baby daughter clad in a pink sundress and pants emblazoned with the words 'Lil Diva'. Aww.
The caption read: "Watch out… another one's getting ready to conquer the world!"
Christina gave birth to Summer Rain at Cedars-Sinai Medical Centre, and announced her happy baby news on 18 August.
She became engaged to Summer's dad, Matthew, the previous January.
Christina is also mum to son Max, seven, from her relationship with ex-husband Jordan Bratman.
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