Liz McClarnon has subtly shared her plans to get married for the first time.
The Atomic Kitten singer, 40, took to Instagram on Thursday to wish her "husband-to-be" a happy birthday - revealing her engagement in the process.
Although the Liverpool-born babe kept her fiancé's identity a secret - concealing his face from the camera - the star wasn't shy about showing off the impressive diamond ring on her left hand.
Fans and celebrity pals rushed to congratulate the Whole Again singer - with bandmates Jenny Frost and Natasha Hamilton amongst the famous faces sending their love to the newly-engaged star.
Captioning a black-and-white snap of herself embracing her mystery man, Liz wrote to her 69,500 followers: "Happy birthday to my husband-to-be.
"YEP! I’m going to marry the most beautiful human I’ve ever known and it’s his birthday today.
"Double yay!"
Former Hear'say singer Suzanne Shaw was one of the first to comment on the engagement reveal, writing: "Congratulations [red love heart emoji] so happy for you!"
Bandmates Jenny and Natasha wrote "It’s just the cutest!!! Happy birthday Mr & huge congratulations to you both….love you lots" and "Yay!!!! Incredible news - we are all so happy for you both!! Planing [sic] the wedding outfit already", respectively.
Fellow pop star Michelle Heaton seemed more surprised by the news, messaging the star: "What ? Wow hellooooooooooo."
Bride-to-be Liz has previously explained how she likes to keep her private life private, after past celebrity relationships have panned out in the public eye.
Over the years, the Scouse star has dated sports stars such as former footballer Lee Trundle, Rugby ace Ryan O'Neil, and fellow 00s pop icon Lee Ryan.
Liz dated the Blue singer between 2001 - 2003, even getting engaged to him at one point, but the pair never made it down the aisle together.
Shortly after the newly-married bad boy singer popped the question in a hotel in Oxford, Liz called things off and later went on to state she would never date another famous face.
Reflecting on the failed relationship, she told Closer magazine: "I'd never date another celebrity again. I was engaged to Lee and I didn't like having our relationship in the spotlight.
"For me, it leads to paranoia. You read things about each other and wonder who said what."
Liz then went on to explain why she keeps her current partner's identity a secret, saying: "Dating a celebrity makes your relationship too public and I like to keep my private life private."
The star, who currently doesn't have any children, has also previously explained how she has consciously made the decision "not to have children with the people I was with".
The 40-year-old star stated she would be interested in adoption as a possible route to motherhood.
"I'm open to adoption as well as I think it's amazing," she has admitted in the past.
"I love the idea that there is a child that needs to be loved and you can give that to them."
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