For Mick Jagger, the problems with rock documentary "Shine a Light" were in the months leading to the show, but for Keith Richards the problems were during the show itself. At one point a female fan jeered him -- "You screwed up!" -- when he flubbed some chords. The salty Richards jeered right back: "Shaddup!" (Jagger and director Martin Scorsese got a good laugh from it in the editing room but softened the volume on his scream for the sake of the soundtrack.)

Richards also looked a bit flabbergasted right before the band launched into "Live With Me," that raunchy classic from "Let It Bleed." "This girl came out and I was, like, 'Who is that?' I had no idea."

It was Christina Aguilera. "Yeah, that's right. I don't know. I'm still not sure who that is. She can sing, though. And she looked good."

-- Los Angeles Times