Not only did the 'Shine Ya Light' singer perform on the Arena Stage, she also soaked up the atmosphere while chilling out backstage in the Mahiki Rum bar.
Clearly wanting to make a statement with her outfit, the songstress flaunted her toned figure in a tiny cream structured bra featuring a cut-out detail and heaps of pearlescent embellishment.
She also sported a rather dramatic pair of low-slung jeans which were covered in frayed rips and matching beaded detailing.
It looks like Rita was really loving her pearls that day, as she also wore them round her neck, on her trainers and even in her hair! Go big or go home, right Rita?!
Her blonde locks were swept into a high ponytail and she rocked her usual look of bold brows, perfectly-winged eyeliner and bright red lippy (although with that tum on show, we doubt anyone was looking at her make-up!).
Also performing at this year's V Festival were headliners Justin Timberlake and The Killers, along with Ed Sheeran, Paolo Nutini, Lily Allen and Example.
Some lucky celeb guests managed to nab passes to Virgin Media's Louder Lounge too - an exclusive hospitality area in Hylands Park offering beauty treatments, private acoustic concerts and even a late-night cinema.
Made In Chelsea's Louise Thompson and Ashley James were among the stars who had their locks tended to by the Mark Hill team, while Millie Mackintosh and Professor Green grabbed a tasty bite to eat from Big Apple Hot Dogs. And Olly Murs and Alexandra Burke were spotted jumping head first into a ball pit... as you do!
Check out more stars inside the Louder Lounge below:
Copyright: Rex Features AKEM
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