Jack Osbourne may make a career out of jumping off high buildings and sky diving, but it seems that the man behind the mask is actually a lot shyer than people may think.

Jack has revealed that he is terrified of crowds and of large, live TV shows. One has to wonder if he has chose the wrong career for himself?

Jack told The Daily Star: “I hate doing shows like the BRITs. My worst fear is being in front of large audiences.”

“You wouldn’t think it but I’m actually a really shy person, I get so nervous at these things.

“Being in front of a crowd is terrifying. Even jumping off skyscrapers isn’t that scary.”

The star added that it’s even worse now he doesn’t drink.

“Before, I could make my nerves disappear – I would get smashed when we did live stuff so it was OK,” he said.