The Saturdays star Frankie Bridge has announced that she is pregnant with her second child.

The singer and her husband Wayne Bridge welcomed their son Parker in October 2013.

She announced the happy news on Twitter on January 8, writing: "So excited to tell you that Wayne & I are expecting another baby later this year. We cant wait for Parker to have a little brother or sister. [sic]"

However, the singer also revealed that she will be unable to take part in the upcoming 2015 Strictly Come Dancing tour as she is "really unwell".

She added: "Sadly I'm really unwell with my pregnancy and won't be able to take part in the Strictly tour. I'm SO sorry. I was so looking forward to it."

Bridge is suffering from Hyperemesis Gravidarum, the same condition Britain's Duchess of Cambridge experienced with both of her pregnancies.

The singer's Saturdays bandmates Úna Foden, who is also expecting her second child, Mollie King, Vanessa White and Rochelle Humes tweeted their congratulations.