Some people can pull off disguises very well.

Arnold Schwarzenegger, actor, businessman, bodybuilder and former California governor, is not one of those people.

Granted, the disguise that Schwarzenegger is wearing in this video isn't that extensive, but still.

His voice is a dead giveaway and he looks just like, well, Arnold Schwarzenegger.

In this video, he goes undercover at a Gold's Gym in Venice, Calif., to promote health and fitness and the After-School All-Stars program.

Some people are fooled. Most are not.