Nadine Coyle has given birth to a baby girl.

The former Girls Aloud singer has welcomed her first child into the world with her fiancé Jason Bell, and she took to Twitter on Monday (10.02.14) to announce the happy news.

She tweeted: ''I am overjoyed to let you know our little girl is here. She is amazing! I love being a mammy & will fill you all in soon. Love Nadine Xx. (sic)''

Former bandmate Cheryl Cole was quick to congratulate the couple and tweeted: ''It is OFFICIAL!! There is a baby Aloud!!!!!! Congratulations @nadinecoylenow & Jason so amazing!! (sic)''

Nicola Roberts also added: ''There is a little baby Aloud! Congratulations @NadineCoyleNow & Jason on your little baby Girl. I'm so happy she's here and healthy <3 xo. (sic)''

The 28-year-old star was shocked when she discovered she was expecting her first child as she believed one of her band mates - which includes Sarah Harding, Kimberley Walsh, Cheryl and Nicola - to have a baby first.

Nadine and Jason first started dating in 2008 and the former American footballer popped the question over the festive season.

It is the second time the couple have been engaged, after the first ended in June 2011 because Nadine wanted to focus on herself before committing to marriage.

The brunette beauty told fans she was expecting a baby last summer and later confirmed she was back together with Jason, 35, following speculation over who the father was.