Conor McGregor and Chris Brown go on a 'proper mad' party together in Dublin

Conor McGregor partied with his friend Chris Brown in Dublin this month, describing their catch-up as a 'proper mad night'.

The singer was in McGregor's home country of Ireland as part of his European tour and decided to make a pitstop to party with 'The Notorious One' ahead of his show at the capital's 3Arena.

And it looks like they had quite the evening.

Alongside a series of photos, the UFC star wrote in a now-deleted post: "Me and the homie @chrisbrownofficial #propermadnight #welcometoireland."

In one snap, the friends appear to be sat on a couch of a hotel room looking ready for their night out.

Another, which was almost definitely captured later on, shows them with a shot in their hands as McGregor sits at a bar with no shirt on.

It's not known why the MMA mogul deleted the post, although we do know he received a fair bit of flak for it.

Many people focused on the fact that McGregor is set to make his UFC return with a fight against Michael Chandler this year.

Instagram/@thenotoriousmma

One commenter asked: "Shouldn’t you be training and abstaining from drink and smoking?"

Another wrote: "Bro stay away from them cigarettes bruh we need a win this year."

"Chandler is gonna beat your a** so bad," added a third, while a fourth said, "Dude Chandler is going to sleep you if you don’t get to it."

Over on Twitter, one user who shared a photo of the pair wrote: "Conor McGregor and Chris Brown... The jokes just write themselves."

A second chimed in to say: "You can imagine the level of intelligent conversation there."

Others focused on the unusual red marks on McGregor's shoulder, including this person who asked: "Why does Conor have pepperoni on his right shoulders?"

Instagram/@thenotoriousmma

But the 34-year-old mixed martial artist later shared a photo revealing that he recently underwent cupping - a form of alternative medicine in which a local suction is created on the skin using heated cups.

While McGregor prepares for his UFC comeback, Brown is currently on tour across Europe.

Last summer, he performed at his first UK event for the first time since being banned from the country following his assault on former girlfriend Rihanna.

The 33-year-old rapper took to the stage at Wireless Music Festival in London on 1 July, and just like the McGregor snaps, his appearance prompted a strong reaction from the online community - albeit for a different reason.

"If you’re planning on watching Chris Brown at Wireless you may as well just say you hate women with your chest," wrote one person on Twitter.

Twitter

"All up in arms about Amber Heard but will happily support an abuser as long as he makes mediocre music and said sorry."

Another commented: "Not Wireless bragging on their TikTok that Rihanna turned up. You guys had Chris Brown playing are u not ashamed?"

If you or someone you know is experiencing abuse in a relationship, call the Freephone 24/7 National Domestic Violence Helpline, run by Women's Aid in partnership with Refuge, on 0808 2000 247 or visit www.womensaid.org.uk