Gwen Stefani unveils her baby boy

(China Daily) Gwen Stefani has released the first official pictures of her son Zuma Nesta Rock.

The No Doubt singer - who welcomed Zuma, her second child with husband Gavin Rossdale, into the world in August - posted a touching portrait of herself and her new baby on her website.

To accompany the photo, Gwen wrote: "We wanted to share with you the first photo of Zuma Nesta Rock Rossdale. Gwen, Gavin, Kingston and Zuma are all doing well and enjoying being a party of four."

The picture shows a wide-eyed Zuma, who has blue eyes, an open mouth and a smattering of downy hair, cuddling up to Gwen's bare shoulder.

The 39-year-old star looks relaxed and happy in the shot, while Zuma already appears at ease in front of the camera.

Gwen and Zuma were also pictured together at the Beverley Hills library on Wednesday.

Zuma, wearing dark shorts and a white vest with his hair sticking up in a tuft, was being photographed for his first passport.

His mother, dressed casually in a studded denim jacket with a slick of her trademark red lipstick, looked on adorningly as Zuma posed for his picture.

Gwen's outfit was slightly more casual than her choice of attire at Kate Hudson's Halloween party on Sunday, when she surprised onlookers with her unusual fried egg costume.