The Mama Do singer is engaged to her boyfriend, model Oliver Cheshire, after six years of dating.
The singer announced the happy news to fans on Instagram after Oliver popped the question during a visit to London's St. Paul's Cathedral. Pixie, 25, shared a picture of her oval-shaped diamond engagement ring, with the caption: "So happy, biggest surprise ever."Oliver was spotted by onlookers getting down on bended knee in front of the famous landmark, with Pixie bursting into tears of happiness.
The blonde has been dating the model, who has worked for Calvin Klein and Dolce & Gabbana, since they met at a fashion show when she was 19.
The couple live together in London, and although the singer previously admitted that their busy schedules often keep them apart, she insisted she could see a future with Oliver. "Either I'm away or he's away, and those times are hard," she said in February. "But we're used to it because it's been like that since the beginning.
Congrats to the happy couple!