Christina Aguilera and her baby cover this week's edition of People magazine

Singer Christina Aguilera has given the world the first look at her one-month-old son, by selling pictures of them both to People magazine.

Aguilera appears on this week's People cover with her son Max Liron, her first child with husband Jordan Bratman.

Aguilera tells People, "He's completely changed my life," adding that she is "head over heels in love" with her son.

The magazine also features photos of Aguilera's nursery, in her home which formerly belonged to Ozzy Osbourne and his family.