Lily Allen will ''definitely'' write about motherhood on her new album.

The 'Not Fair' hitmaker - who is expecting her second child with husband Sam Cooper - recently announced she was returning to music after a three-year break and says her experiences of family life will be an influence on her writing.

Asked if her new life will be a subject matter, Lily - who also has 11-month-old Ethel with Sam - said: ''Yeah. It definitely will.''

Although she has been working hard in the studio, Lily - who is working under her married name of Lily Rose Cooper - has warned fans they face a wait to hear her new material.

She added to NME magazine: ''I'm just tinkering away. I'm not going to put anything out until I've got an end product which I think is amazing - or, you know, good.

''I don't think there's going to be anything out in the next few months. But hopefully in the next year.''