By Hanna Flint
Published: 13:04 EST, 2 June 2014 | Updated: 01:53 EST, 3 June 2014
Kimberley Walsh is proving to be a rather stylish mother-to-be as she stepped out on Monday in a vibrant royal blue dress with matching shoes.
The lace frock clung to her growing baby bump as she arrived to the Health Lottery Tea Party at the Savoy hotel.
With her hair coiffed into a voluminous style, pregnancy certainly looked like it was agreeing with Ms Walsh.
Blooming in blue: Kimberley Walsh wears a vibrant lace dress and matching heels to the Health Lottery Tea Party
Ready to pop: Kimberley is expecting her first child this summer with partner Justin Scott
Kimberley has vowed not to find out the sex of her baby until it arrives in a short few months, so the colour of her dress is certainly no subtle indication.
This will be the first child for the former Girls Aloud star and her partner Justin Scott, who she met in her twenties.
Speaking of the moment she first saw her unborn child via an ultrasound, Kimberley told OK! magazine: 'I was overcome with emotion, I don't know where it came from.
Colour block: Walsh painted her nails a bright orange to contrast with her royal blue dress
'I saw the baby wriggling away and burst into tears, crazily so. It suddenly felt real and it mustn't have done until that point.'
At the charity event, Kimberley joined a whole host of celebrity guests including Ashley Roberts, Sian Welby, Anne Diamond and Vanessa Feltz, Casey Batchelor, Chantelle Houghton, Sinitta, Amy Willerton and Amy Childs.
Simon Cowell hosted the tea party and he was joined by his fiancée Lauren Silverman, though couple left their son Eric at home with the nanny.
30 charities who are helped by the Health Lottery also attended the event and so far over 1,300 projects have received funding.
Mystery: The former Girls Aloud star has decided to wait until the birth to find out her baby's sex
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