The popstar and former Strictly Come Dancing contestant announced on Sunday (13 November) that long-time boyfriend Oliver Cheshire had popped the question.
And, of course, she said yes!
Pixie shared a photograph of her beautiful engagement ring to Instagram, with the caption: "So happy. Biggest surprise ever."
She added: "I cried my [eyes] out."
Oliver, meanwhile, wrote on his own Instagram account: "What a beautiful day and the most beautiful woman in the world said yes to me on it. Lucky man.
The M&S model got down on one knee and popped the question at St Paul's Cathedral in London.
A source told The Sun: "It was so romantic. Ollie whisked Pixie out of a taxi and led her to the top of the steps, where he dropped down on one knee and pulled out the ring. Pixie didn't seem to have any idea he was going to ask her to marry him and burst into tears.
"It was like something from a movie."
Pixie and Oliver have been together for six years so, as you'd expect, they've been constantly asked over the years when marriage may happen.
In August this year, Pixie told Daily Star: "People always ask me about getting married but we're not at that point yet. We're too young. We have crazy jobs, crazy schedules, and we don't need to rush. "He is my family. He's incredibly supportive of me. I'm aware of what that means and how lucky I am."
And in an interview with PennyBlackMusic.co.uk last year, she said: "One day I hope marriage and children might happen, though we are not thinking about it at the moment. I always wanted to get married. Even at nursery school I used to run in and go straight to the dressing up box and put on a wedding dress.
"I come from such a strong family so, yes, I definitely want marriage and babies. That is what we are all on this earth for, isn't it?"
Congrats to Pixie and Oliver!