Simon Cowell has sparked wild speculation about his health after a viral clip of the television mogul clapping awkwardly on The Jennifer Hudson Show left viewers fearing he may be "nearing the end," RadarOnline.com can reveal.

The 65-year-old X Factor judge was filmed walking through the program's "spirit tunnel," a backstage corridor where crew members serenade guests before they take to the stage. Dressed in his trademark black t-shirt and jeans, Cowell smiled through the performance, but it was his stiff walk and unusual clapping style that set social media ablaze. Article continues below advertisement

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