Jonathan "Jon" Jafari (born 24 March 1990), more commonly known on the internet as JonTron, is an entertainer and the co-founder of the show Game Grumps, alongside his friend Arin Hanson. Besides Game Grumps, he is known mostly for his game reviews and being part of the community known as NormalBoots. Jon's tenure on Game Grumps lasted for 342 days (18 July 2012 - 24 June 2013) before leaving. Jon started his show in 2010 with a standard review of the video game Daikatana