POP star Lily Allen has become embroiled in a row with Katie Hopkins after the former Apprentice candidate criticised the singer's weight.

Hopkins, 38, criticised the singer in a magazine article.

"I quite liked her when she was singing and then she went off to tell us all about being a mother," she said.

"She was removing herself from the spotlight because she wanted to be a mother and that largely involved gaining two stone and looking pretty hideous.

"Like Peaches (Geldof), she is just famous for having a famous dad."

Allen, 28, whose father is the actor Keith Allen, hit back on Twitter, saying: "Katie Hopkins: I am not famous for having a famous dad, I doubt most of my fan base have a clue who my father is."

The singer, who lost a baby son in 2010, added: "Yes, after tragically losing a child so late into my pregnancy I may have gained a few pounds. I am one of many that find comfort in food."

Allen, who now has two daughters, added: "The two pregnancies that followed were terrifying because of what had happened before and I was pretty much on bed rest for 20 months.

"Can somebody tell me what Katie Hopkins does except go on telly slagging off girls half her age?

"PS: Katie, looks are obviously so important to you. There's always plastic surgery ya know. Maybe they could sew your mouth up while they fix the rest of you."