Beyonce Knowles is losing out on hours of beauty sleep - because she's addicted to staying up late and watching fans perform her famous dance moves online.
The success of Knowles' catchy tune Single Ladies (Put a Ring on It) blew up when the star shook to the beat in her new music video, wearing only a body-hugging leotard and high heels.
The singer found her inspiration after stumbling across a clip of a 1960s Bob Fosse routine called Mexican Breakfast on youtube.
And now she can't stop surfing the net for spoofs.
She tells OK! "It's beautiful, it's amazing and I love it! I stay up all night watching them."
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