>> Kate Moss knows how to give a performance, and when you combine that with her passion for music — be it dating rockers, dancing in music videos, or doing a little singing herself — you get a performance like last night.  She was a judge at children's charity event Hoping's Got Talent and surprised the London audience — which included Mario Testino — by taking the stage with Pink Floyd's David Gilmour to sing a rendition of Gershwin's Summertime.  She danced, got down on her knees, and writhed around onstage; apparently she took singing lessons in preparation for the event.  But she left quite an impression, raising £47,600 (approx. $78,000) for the cause — let's hope her upcoming W September 2009 cover is just as memorable.