Three-time Elle cover girl Lily Allen has announced that she is expecting her second child, according to the Sunday Mirror.

Lily, who gave birth to her daughter, Ethyl, last November, is said to be surprised that no-one noticed her baby-bump when she appeared on stage with Professor Green in Manchester last week. Her bump is said to have appeared a lot faster than it did with her first pregnancy.

Lily, who has previously suffered two miscarriages, is staying very busy: she opened the new Stroud Cricket Club house last week and she has been working on the music for Bridget Jones' Diary: The Musical, as well as working on another album.

In other celebrity baby news, Sienna Miller is reported to have given birth to her first child over the weekend, says US Weekly. No details have been revealed regarding the gender or weight of the baby whose father is actor Tom Sturridge – but watch this space...