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A friend of the 23-year-old has also revealed that she was inspired to join a lookalike agency after being complimented by the singer.
They told the News of the World: "Rachael felt she was a bit of a fat girl going nowhere in life.
"But Beyoncé told her how beautiful she was and the effect was incredible - there was an almost overnight transformation as her confidence rocketed."
The popstar told Rachael: "You look so much like me you could be a lookalike!"
"Rachael just decided to grab the bull by the horns and improve her life for the better," the friend added. "She signed up at a lookalike agency - and has never looked back."
