The Girls Aloud star was spotted out in the capital heading to a special Sport Relief recording of the England 2014 World Cup song, along with fellow celebrities including Emma Bunton and Eliza Doolittle.
For the occasion, Kimberley wore a fashionable ensemble of black leather trousers, a black lather coat and a pair of cute heels.
She accessorised with some gold chains, a black handbag and a pair of shades to shield her eyes from the (surprisingly!) sunny weather.
Songstress Kimberley announced that she is pregnant last Monday (24 February) and is over the moon to become a first-time mum.
And judging by these sweet new pictures, the pregnancy glow certainly suits her!
She and boyfriend Justin Scott have been inundated with well wishes and congratulatory messages on Twitter, including a message from ex-bandmate Cheryl Cole, who admitted she was bursting to tell everyone the exciting news.
Following Kimberley's announcement in February, Cheryl tweeted: "FINALLY, I thought at one point I was going to burst!"
Ever since she shared her happy baby news, 32-year-old Kimberley has been keeping fans in the loop with her pregnancy journey.
The expectant mum appears to be taking to the experience like a duck to water and recently revealed that her current craving is spicy food.
She wrote on Twitter: "So my only craving so far is spice.....literally cannot get enough of chilli these days ha #passthechillioilplease anyone else have this?!
What do you think of Kimberley's daytime outfit? Let us know below, as the best comment from across the website each week wins £50!
Celebrities who have announced pregnancies in 2014 in pictures:
Copyright: WENN Lexie Appleby/Future Image/Bridow/Instagram