Rochelle wasn't the only Sat to have her man in the crowd either, as Una Healy's husband Ben Foden was also there to show his support!
Both Rochelle and Marvin and Una and Ben were pictured backstage in the exclusive Virgin Media Louder Lounge after the girl band opened the festival's Hylands Park leg in Chelmsford, Essex.
Despite having wowed the audience with costumes adorned with colourful tassels , Rochelle opted for a simple black maxi dress with split as she hung out with her man.
Rochelle, who gave birth to daughter Alaia-Mai in May, completed her look with a funky black hat and a pair of pixie boots, adding a splash of colour with a reddy orange lipstick.
Marvin, meanwhile, kept it smart in jeans, a pale lemon T-shirt and a green jacket. He jazzed up his outfit with a pair of orange loafers and proudly posed with his arm around his wife for pictures.
Una, who is mum to daughter Aoife Belle, also nailed festival chic, changing from her stage costume into a yellow and white lace dress with studded brown cowboy boots. Rugby player Ben kept it casual in a muscle vest, shorts and flip-flops.
What a pair of yummy mummies - and daddies!
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