Joe Rogan, is best known to most people as the host of Fear Factor and the color commentator for the Ultimate Fighting Championship (UFC). However, he’s not all arm-bars and making people eat dung-beetle dung; his true passions are stand-up comedy (Rogan has had a wildly successful career that includes multiple CD/DVDs, and selling out huge rooms) and psychedelic experimentation. Rogan’s always been a huge proponent of putting yourself in altered states in order to get a better understanding of the universe. During one such state (he was on Dimethyltryptamine, or DMT, and immersed in sensory deprivation chamber), he claims to have ascended to a different plain of existence and seen some a pretty serious creature. This creature, as well as the DMT itself, became the main inspiration for the full sleeve tattoo that he has on his left arm (it also contains a dragon and a pot-leaf). He also has his right arm done, but we were unable to find any pictures of it.