Warning: NSFW language.

Zac Alsop is an evil genius.

On Friday, the YouTuber and sports fan documented his journey at the final leg of Conor McGregor and Floyd Mayweather Jr.'s worldwide press tour in London.

Alsop created two fake credentials—one media, one promoter—with Photoshop and tagged along with various crews to sneak past Wembley Stadium security. He eventually rubbed shoulders with UFC President Dana White and other bigwigs.

In fact, Alsop got so far in that he actually walked out with McGregor's crew.

Alsop has been known to pull these stunts. Last summer, he crashed a Team Great Britain Olympics parade disguised as an athlete.

[YouTube]