The Coronation Street actor attended his good friend Kylie’s birthday party at the Chiltern Firehouse in London last night.
And, as he left the event, the 42-year-old appeared to have enjoyed letting his hair down.
Seeming to struggle as he made his exit, the soap star attempted to manoeuvre himself into a taxi.
However, the cobbles regular took a slight tumble as he stepped into the vehicle.
The actor, who plays Sean Tully in the hit ITV show, had put on a very stylish display for his evening out at the star-studded bash.
He donned a black shirt for the occasion, which he teamed with a pair of ripped blue denim jeans.
The star finished the look with a smart black jacket and matching loafers.
He was accompanied by his long-time partner Peter Eccleston, who sported a patterned monochrome shirt and black trousers.
Antony has previously spoken out about his friendship with the Dancing singer, during an interview on the ITV show Lorraine.
Speaking earlier this year, he said: “I’ve known Kylie for a good few years now… her best friend is from Manchester and that’s how I met her… about 20 years ago now.”
The duo were amongst a number of fellow celebrities who stepped out to celebrate the Spinning Around hitmaker’s birthday – including Graham Norton, David Walliams and Jason Donovan.
James Blunt and his wife Sofia Wellesley were also pictured arriving, as well as former Spice Girls favourite Mel C.
Britain’s Got Talent judge Amanda Holden was also in attendance at the glitzy event, and took to Instagram earlier that day to share her excitement.
Sporting a floral minidress, which featured a cut-out design across both shoulders, the 47-year-old was the epitome of glamour.
She let her blonde locks cascade in curls around her shoulders, and completed the stunning aesthetic with a red Chanel clutch bag.
Teasing fans about where she might be off to, Amanda wrote: “Off to a #special #birthday.”
Kylie took to Instagram earlier today, as she marked her milestone birthday with a jaw-dropping naked snap.
Having ditched her clothes, the singer covered her modesty by grasping a bejewelled black guitar.
The former Neighbours actress grinned as she gazed into the distance for the powerful photo.
Beside the snap, she told her 1.6 million followers: ”And so a new decade begins. How thankful I am for the opportunities life has afforded me. 50… Let’s go!”