Girls Aloud star Kimberley Walsh has given birth to a baby boy.

The singer, who also starred in Strictly Come Dancing, announced the birth via Twitter today.

She said: "Our beautiful baby boy Bobby arrived yesterday afternoon 04/09/14 he's perfect."

Walsh is currently in a long-term relationship with Justin Scott, who was in the boyband Triple 8.

She is not the first member of Girls Aloud to become a mum with Nadine Coyle giving birth to daughter Anaiya earlier this year.

Bandmate Cheryl Cole took to Twitter to congratulate the star saying, "He really is, he's perfect."