Conor McGregor and 50 Cent’s beef stretches back to last July when, promoting his fight against Floyd Mayweather, McGregor called the American rapper a “b****.”

“You and 50 are two fake money bi***es,” McGregor said at the New York press conference. “He’s bankrupt and you’re about to be.”

50 Cent fired back on Instagram, writing: “👀what the f**k wrong wit this white boy, you fighting Floyd not me fool. LOL”, and also calling the UFC star a little leprechaun.

Nobody was more pleased to see Mayweather defeat McGregor than 50.

He posted a series of Instagram posts mocking the Irishman, including one that compared McGregor to the classic Jack and Rose scene from Titanic.

Click HERE to see all of the posts.

Last September 50, whose real name is Curtis Jackson, was asked whether he could take McGregor in a fight.

“In the street? Yeah! C’mon, he weighs 150 pounds, man!,” came the reply.

Thought that was the last of it? Think again.

McGregor has ruined 50 on Instagram

50 recently posted a video on social media - which has since been deleted - in which he said McGregor has a lot of talent “for a white boy”.

McGregor was never going to let it slide and he’s back with a scathing Instagram post.

“Happy International Women's Day everyone!,” McGregor wrote, alongside an image of 50.

“Get your **** out for the lads ladies. We love you. Superior genes my big ******** mate.

“I am made of granite. You need a bra. You jabbed up fool.

“Hahahaha you should have stayed quiet and promoted that fight for me on the free like you did. But you just kept going with them ******* memes.

“Your 50, 50. 50 years old. **** off.

“It's all love tho fifty serious, you are a mad b*****d, but we still proper love a few of your tunes over on this side of the world.

“I even blasted one of them on the free walking into Madison Square Garden to take one of my belts.

“It was called I run New York. @beatsbydre”.

Yeah, this beef isn’t going to die anytime soon.