UFC fighter Conor McGregor went shirtless on a night out, showing off his impressive muscles and giant diamond medallion.

The superstar, 34, was out with his friends and business acquaintances who had gifted him the jewellery which spelled out ‘Pretty Twelve.’

Pretty Twelve is the name of Conor’s whisky brand and the jewellery had been gifted to him by @thecutpricejewellers who he referenced in the caption.

Diamond geezer! Shirtless Conor McGregor showed off his huge diamond ‘Proper Twelve’ medallion named after his whisky brand on night out with his pals on Instagram on Sunday

Not a wallflower: He showed off his many inkings as he flexed his muscles in front of his pals

Conor is facing a multi-million-pound lawsuit after being sued by a friend, who claims he came up with the idea for his drinks brand.

Conor launched the drink in 2018 – he was one of three shareholders who sold their stake for a combined $600million three years later.

But his friend and ex teammate Artem Lobov, is demanding 5% of the proceeds,

Still, Conor looked as though he didn’t have a care in the world on his night out as he whipped off his shirt and posed for pictures with his friends.

It’s all going on: Conor is facing a multi-million-pound lawsuit after being sued by a friend, who claims he came up with the idea for his drinks brand

Showing off his many inkings, he flexed his muscles while wearing nothing but trousers and a beanie hat.

He wrote: ‘Thank you @thecutpricejewellers for my @properwhiskey chain! Wow! What a team, what a family, what a price! Cut price forever!

‘And a huge happy birthday goes out to the best all time @samcashind in the house ❤️ @theblackforgeinn rocking!!’

The outing comes as Conor called on the UFC to sign one of the UK’s biggest stars currently fighting outside of the organisation, Brendan Loughnane.

Nothing to see here: Conor launched the drink in 2018 – he was one of three shareholders who sold their stake for a combined $600million three years later

Very festive: Conor posed in front of a Christmas tree made out of whisky bottles

Loughnane enjoyed the biggest night of his professional career on Friday as he faced off against Bubba Jenkins for the Professional Fighters League’s Featherweight World Championship.

The Mancunian striker overcame early adversity to overwhelm the accomplished amateur wrestler with a fourth-round stoppage, collecting the to the PFL title, and the accompanying $1million prize, in the process.

However, Loughnane’s next fight may be inside the Octagon after McGregor took to Twitter to call upon the UFC to sign him.

Close: He threw his arm around some of his friends as he posed for more snaps

What a night! He thanked the jewellery brand for the necklace in the caption

‘UFC, sign Brendan Loughnane. Exciting fighter. A back story with the company. And of the European side. A money in the bank uk/Europe signing. Congrats on the win @BrendanMMA’

Loughnane’s first taste of the world’s largest mixed martial arts promotion came when he was cast a member of Team UK on The Ultimate Fighter ‘Smashes’ season in 2012.

He competed against an Australian team that featured future UFC champion Robert Whittaker.

Something to say: The outing comes as Conor called on the UFC to sign one of the UK’s biggest stars currently fighting outside of the organisation, Brendan Loughnane