Why Is There Beef Between McGregor & MGK?

Image via US Weekly
This past week UFC fighter, Conor McGregor made quite the scene at the VMA's. According to multiple sources, McGregor lunged at Kelly and threw his drink at the Rockstar after MGK refused to pose for a photo with him. Security quickly came over to break the feud between the two but it was too late to keep it "hush-hush".  When McGregor was asked why he came after Kelly, he reiterated that he "didn't even know the guy" and the only reason he knows of him is because of his relationship with Megan Fox. MGK hasn't spoken yet on the confrontation McGregor. It's still uncertain what the full details are, but this situation stole headlines this week...stay tuned.