Lily Allen is expecting her second baby

The singer says she's surprised no one noticed her bump at Heaton Park

Lily Allen is expecting her second baby, just months after giving birth to her daughter Ethel Mary.

The singer, who had her three-month scan this week, according to The Sunday Mirror, has told friends that she is surprised nobody has guessed she was expecting after her appearance with Professor Green at The Stone Roses‘ second Heaton Park show (June 30).

The pop sensation confirmed her return to music when she turned up with the Hackney rapper to perform their 2010 single ‘Just Be Good To Green’. Their hook-up is based on Beats International’s ‘Dub Be Good To Me’, which was itself a reworking of The SOS Band’s classic ‘Just Be Good To Me’.

Right after the show, the singer took to Twitter and joked:

Lily recently confirmed that she is working on new material, responding to a question on Twitter by saying: “You will be pleased to know that I am currently in the studio with Greg Kurstin. No big deal really, I’m just throwing stuff at the wall and seeing if anything sticks.”

The singer plans to spend the rest of summer working on her album and then take a rest before the birth.