07/08/2012 at 01:00 PM EDT
Another reason to smile: Lily Allen is expecting another baby with husband
The couple, who wed in Gloucestershire, England, last summer while the pop star, 27, was pregnant with daughter Ethel Mary
, now almost 8 months, are "over the moon," a source told the U.K.'s Sunday Mirror
Due in December, Allen, who has since taken her artist husband's last name, "has started telling her friends, and everybody in her close circle is so excited for her," a friend adds, according to the report.
Without outright confirming, Allen has made what seems like a sly reference to the pregnancy on Twitter
, saying: "Thank you for all your congratulations today. I honestly couldn't be happier. such an honour to be on the list!#Timestop50tweeters."
She was more vocal when it came to congratulating another British pop star on her pregnancy
"Wow," Allen Tweeted
. "Adeles preggers!"
A rep for the singer declined to comment.