British pop star Lily Allen, mother of an 8-month-old daughter, is pregnant with her second child, sources told the Sunday Mirror in London. The newspaper said the baby is due to be born in December. She "has started telling her friends, and everybody in her close circle is so excited for her," a friend told the Mirror. "Thank you for all your congratulations today. I honestly couldn't be happier. such an honor to be on the list!#Timestop50tweeters," Allen said via Twitter. Allen, who married businessman Sam Cooper last summer, was pregnant two other times, but suffered miscarriages.