The Saturdays star Frankie Bridge has announced she's expecting her second child with footballer hubby Wayne.

Frankie - who welcomed baby boy Parker in October 2013 - revealed the news on Twitter, also confirming that she will be unable to appear on the forthcoming Strictly Come Dancing tour due to morning sickness.

The brunette babe wrote: "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.

"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."

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

— Francesca Bridge (@FrankieTheSats) January 8, 2015

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.

— Francesca Bridge (@FrankieTheSats) January 8, 2015

It's thought the 25-year old singer is suffering from Hyperemesis Gravidarum, the same condition that Kate Middleton has experienced during her pregnancies.

She added in a separate statement: "I'm devastated that I'm missing out, as I loved Strictly so much and was so looking forward to joining everyone again in all those fabulous arenas.

"Thanks for the warm messages I've already received, they are really appreciated."

[related]A spokesperson for Stage Entertainment and Phil McIntyre Entertainments, producers of the Strictly tour, noted: "We completely respect Frankie's decision, a safe pregnancy is the priority. On behalf of the whole cast and crew, we send Frankie our love and very best wishes - we will miss her."

Fellow Saturdays star Una Foden is also expecting her second child, with the Irish stunner tweeting: "Congratulations to @FrankieTheSats and Wayne who are expecting their 2nd baby later this year."

Bandmates Rochelle Humes, Mollie King and Vanessa White also took to Twitter to congratulate the couple.

Congratulations to @FrankieTheSats and Wayne who are expecting their 2nd baby later this year xx

— Una Foden (@UnaTheSats) January 8, 2015

Big Congratulations to @FrankieTheSats and Wayne who have another #BabyBridge on the way x

— Rochelle Humes (@RochelleTheSats) January 8, 2015

Haven’t you two got a TV @FrankieTheSats!! So so happy for you, Wayney and little Parker! xxx

— Miss Mollie King (@MollieTheSats) January 8, 2015

So happy and excited for @FrankieTheSats and Wayne on expecting baby number 2!!! Xxx

— Vanessa White (@VanessaTheSats) January 8, 2015