Anyone else think it looks a little like a negligee?!
Proving that she isn't afraid to take a style risk, the Body On Me singer flaunted her fabulous pins in the thigh-skimming silky number which boasted a vintage lace trim, a pretty paisley print and ruffle neck detail to boot.
Reets teamed the nude number with a velvet jacket that featured a faux fur trim on the sleeves and she offset the look with a pair of failsafe court heels.
When it came to her hair, Rita - who is a ha-uge fan of extensions - ditched the fussy, lengthy look for a seriously gorgeous, ethereal braid a la Made In Chelsea's Rosie Fortescue and her make-up was intensely glow-y.
The starlet joined forces with Joe Jonas, X Factor runner up Fleur East and Labrinth at the star studded bash. She later took to Instagram with a snap of her eye-catching ensemble and captioned it:
"So honoured to speak at We Day in London and celebrate all of the incredible things young people are doing to change the world."
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