The Brit star donned a pair of pure white trousers and matching boots which she teamed with a pin stripe red and black top that boasted a gorgeous military button detail on the shoulders.
Got fed up of the beret then, Reets?
A far cry from the French chic look she has been rocking lately, Rita joined the likes of Paris Hilton and Sharon Osborne at the charity gala, where she performed a medley of her biggest tunes, in this rather tame outfit. But we're loving it!
And it looks like the star of The Voice UK fancied a change from her short tresses as she acquired a few extra inches thanks to some platinum blonde hair extensions.
The songstress' fringe was perfectly curled to frame her face and of course, she added a slick of her trademark red lippy and lashings of mascara to complete the look. We're also obsessed with the studded choker which gave the outfit an extra helping of sparkle.
Rita has set tongues wagging this week after rumours emerged that Simon Cowell is desperate for her to join the X Factor judge line-up. Fingers crossed, Si!
In the meantime, shop our pick of the best white boots a la Rita.