Brandon Temasfieldt (Mess Yourself) (born May 5, 1995) is a popular YouTube star and social media personality who has gained more than 7 million subscribers to his channel for his comedic content told through the perspective of popular video games.

Mess was born as Brandon Temasfieldt on May 5, 1995 in England, he has two sisters: Candice and Frankie.

He studied mathematics at Uxbridge College but later decided to pursue his career as an internet personality.

He joined YouTube in June 2011 and his channel titled ‘MessYourself’ is filled with numerous “funny moments” videos.

Some of the most funny videos on the channel are 'Reacting To The Saddest Animations Ever Made', 'Press X To Kiss Your Girlfriend (Press X To Not Die)' and 'Reacting To Commercial Animations'.

The first video, which has over 10 million views and it features him reacting to some of the saddest animated clips.

The second video, with over 6 million views, is a super hilarious video where he gives his running commentary on the video game Press X To Not Die.

According to him he starved himself to manage to get the equipment needed to create a decent channel.

He started to gain a bigger following when fellow YouTube star Felix Kjellberg awarded him in his shout out competition.

Most of his videos are reaction related and sometimes includes some vlogs.

His fan favorites include the Sims 420 series, the Grand Theft Auto 69 series, and the Watch Dogs series.

He is also known for his extreme reactions and over the top editing.

He does not do gaming on his channel now, but he still does Gaming videos on his alt account, "MessYourself Gaming".

He began dating CrayisTaken in 2018, she is a popular Youtuber who is from Israel.