What was meant to be a glittering night of high fashion and mother-daughter glamour quickly gave way to growing concern, as the pair stepped out in London — only for fans to fixate on their alarmingly frail frames. Sharon Osbourne made a dazzling return to the public eye on Thursday night — but behind the glittering gowns and painted-on smiles, fans couldn't help but notice something deeply unsettling. The 73-year-old music manager and her daughter, Kelly Osbourne, 41, attended the exclusive launch party for designer Rebecca Vallance's latest collection in London. It was meant to be a night of celebration and style — but the crowd saw more than just sequins and smiles. Sparkle, Style… and a Hint of SadnessSharon, looking every inch the grande dame of British showbiz, stunned in a floor-len

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