"Prince Albert"
The prince of darkness has reportedly been hiding out under a far meeker moniker for years: aside from being a brand of pipe tobacco that spawned a joke older than the first Black Sabbath album ("Do you have Prince Albert in a can? Well, better let him out!"), it was also the name of Queen Victoria's husband. Still, it's hard to believe Ozzy could escape the attention of even the most gullible front desk clerk.