Dermot O'Leary Engagement Revealed On Xtra Factor
Presenters Olly Murs and Caroline Flack let the cat out of the bag...
But she blurted out "we want to congratulate you... on your engagement!" and Olly followed up by asking why it had taken him so long.
Dermot quipped back: "Well, you don't want to rush these things."
He and Dee were reported to have bought a £3.5m home in London together back in April this year - and have been together for 10 years.