The couple announced their engagement earlier on Monday, as Frankie posted a picture of her giant rock on Instagram as her new fiancé showered her with kisses.
"Guess what?!!!! ❤," she wrote alongside the snap, teasing her news.
Frankie and Wayne have been together two years, following her break-up from McFly's Dougie Poynter.
Her bandmate Vanessa White led the congratulations, tweeting: "Congrats @FrankieTheSats & Wayne! So happy for you guys. Woooooo xxx."
Una Healy wrote: "So Happy for @FrankieTheSats and Wayne who have recently got engaged X."
Rochelle Humes added: "Big congratulations to @FrankieTheSats and Wayney. He did so well :-) and the ring is to die for in the flesh. Welcome to the wifey club xxx."
It will be the third Saturdays wedding, as Rochelle and Una are already married.
It probably won't be too long before they further follow in their footsteps and start a family as Frankie recently said she can't wait for them to have children.
"I'd love to have a baby with Wayne. He's amazing," she said in a recent interview.
"He held my hand all the way through my problems and he was there for me when my grandad died last October. He's just an incredible man and I love him."
Aww, massive congrats guys!
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