Oprah may not have been an invited guest, but she and the audience are having a royal celebration of their own. Donning hats of all shapes and sizes is a British tradition—the new duchess herself often makes fashion statements in stunning millinery—so Oprah and the entire audience took a cue from the other side of the pond. "I've said for years we have the best-dressed audience in television, " she says. "I know I am a hat person, but I didn't know this many people had hats. You all look fantastic. ... You all look like you could be at the real wedding, the real royal wedding."