I would normally never post a TMZ video (heck, I wouldn't even watch one usually), but when it involves Sir Ian McKellen not only pulling off his pants live on stage, but also revealing Gandalf underoos with the words "You shall not pass" printed on them, I couldn't resist.
I can't help but think of the old Photoshop image of him wearing the "I'm Gandalf and Magneto. Get over it" shirt, only this one is totally real and not just a fan fantasy that takes away attention from an important cause.
Via io9