Christina Aguilera has posted the first picture of her baby to Instagram. 

The singer gave birth to Summer Rain Rutler back in August.

She wrote the caption: "Watch out... another one's getting ready to conquer the world! #driven #diva2."

Summer Rain is the second child for Aguilera and the first for fiancé Matt Rutler. Aguilera is also mother to a son called Max, with ex-husband Jordan Bratman.

Aguilera's new album has been described as "caviar ratchet" by its producers.

Aguilera revealed that she was working on a new album back in April, when she tweeted: "So blissful in taking this time for creating all things blossoming new on the horizon... album, baby & beautiful music to come".

The singer's most recent album Lotus was released back in 2012, reaching number 28 in the UK and number 7 in the US.