13/11/2014 02:26 GMT | Updated 13/11/2014 10:59 GMT

Declan Donnelly Engaged: 'I'm A Celebrity' Star Pops The Question To Girlfriend Ali Astall

Declan Donnelly has got engaged to his girlfriend Ali Astall after getting down on one knee Down Under.

The 'I'm A Celebrity' host - and one half of presenting duo Ant and Dec - popped the question to his TV manager girlfriend over the weekend.

declan donnelly ali astall

Dec and Ali (right) pictured with Ant McPartlin and his wife Lisa at this year's NTAs

Dec has been joined by Ali in Australia for the next month as he films the new series of 'I'm A Celebrity… Get me Out Of Here!'.

Dec, who is worth an estimated £30million, has known his fiancée for more than a decade as she has worked as Ant and Dec's talent manager.

The 39-year-old star started dating Ali, 35, a year and a half ago and have been living together since the start of 2014.

Friends of the couple say they are hoping to walk down the aisle next summer before starting a family.

declan donnelly ali astall

Ali Astall has managed Dec for over a decade

A source told the Mirror: “Dec and Ali are completely besotted with each other.

“They have been best friends for a long time.

“Dec soon realised that the he’d met the girl he wanted to spend the rest of his life with and felt ready to settle down.

“Friends and family are delighted and see that they’re taking the next step as they’re perfect for each other.”

Speaking about the romance earlier last year Dec said: “It's going good. Everything’s hunky-dory. It was a little strange because we’ve had a working relationship for so long. But because it just happened there was no big ta-da."

Congrats to them both!

Photo galleryAnt and Dec Through The Years See Gallery