The gorgeous former Girls Aloud star looked chic and elegant in a beautiful grey jumpsuit while out in the sunshine of the capital on Wednesday afternoon (20 August).
We want this look!
Nadine, 29, was effortlessly stunning in her cute playsuit, teamed with black heels, voluminous glossy hair and a pair of sunnies.
The 'Love Machine' singer was born in Northern Ireland but now lives in sunny LA with fiance Jason Bell and their baby daughter Anaiya.
She jetted into the UK with Anaiya earlier this week for a photoshoot and series of business meetings, although so far she's kept tight-lipped about what projects she is working on.
Nadine will join Michael Flatley's upcoming extravaganza Lord Of The Dance: Dangerous Games in September, performing the show's title track.