Right by Ant's side was his BFF, sidekick and I'm A Celebrity co-host Declan Donnelly, and it looks like they had a right knees-up on Australia's Gold Coast.
The cheeky Geordie duo were spotted drinking in a quiet pub, and newly-engaged Dec came in tow with fun kangaroo hats, which they later donned for photographers.
Inundated with messages from fans, Ant wrote on Twitter: "Thanks for all your b'day messages today. You lot are bloody lovely! Now, wheres me cake?"
Well, by the looks of things, Byker Grove star Ant didn't have to wait too long, as he later shared a photo of a M&M's themed cake - we want one!
It seems Ant got spoiled rotten though, as he was later spotted with yet another cake. Well, he is the birthday boy after all!
The new series of I'm A Celebrity... Get Me Out Of Here! kicked off on Sunday night (16 November) with Ant & Dec back at the helm.
The presenting duo have been at the forefront of the ITV reality series since its inception in 2002.
The return of I'm A Celebrity's brand new 14th series was a ratings hit, with a peak audience of 11.1 million viewers watching the opening episode.
Reveal is now on Google Plus! Join us here for the latest pictures, fashion and celebrity news!
I'm A Celebrity line-up: