Walls of Jericho: Wrestling Superstar Signs Book at Bookends

He's been a six-time heavyweight champion of one of the world's most popular sports and in a rare side-gig, fronts metal band Fozzy (and ode to, you guessed it, Ozzy). He may be known by his in-ring persona Chris Jericho, but 40-year-old Christopher Irvine is much more than that. The singer/slammer is taking some time off from the WWE after his contract expired in 2010 but says he's not completely finished yet with ring-duty.

The chance off, however, gave hundreds of fans the opportunity to see their favorite superstar in the flesh at , where Jericho signed copies of his new book Undisputed: How to Become the World Champion in 1,372 Easy Steps.

[Editor's Note: A fan was misidentified; his name is Michael Kibalo. The caption has been corrected.]