"I met a lady who gave me a scarf that Elvis Presley gave to her mother. And I swore on my mother's life that I would wear it tonight. [As he's putting the scarf on]...Though, she's already dead..."
-Bono, during the 2005-11-04 Las Vegas show.
Bono is almost always seen wearing sunglasses because of an allergy to salicyclates and adverse reaction to light.