Una Foden has shared the happy news that she is expecting her second baby.

The Saturdays star already has a two-year-old daughter, Aoife, with husband Ben Foden and announced her new pregnancy on Instagram.

She posted a photo of Aoife with her hands in the air, wearing a t-shirt that read: "I'm going to be a big sister!"

Una captioned the photo: " I know lots of people have been guessing and Ben and I can now confirm that Aoife is going to have a baby brother or sister next year!!! We're all very happy."

The Irish singer was the first of the Saturdays to have a baby, with Aoife arriving in March 2012. Rochelle Humes and JLS star husband Marvin had their daughter Alaia-Mai in May 2013, and Frankie Bridge's son with footballer husband Wayne was born in October 2013.