Out of this world singing star Amy Winehouse is reportedly in the middle of a police investigation after her bodyguard allegedly hit a photographer with his car.The Rehab star was performing at the Prince's Trust End of the Summer Ball in London last night. After leaving the huge event, she was driven back to her home in Camden, North London, where her driver is said to have scraped another car and nearly knocked down a waiting celebrity snapper. Police are said to be looking in to the incident, after a man in his twenties allegedly made a complaint, according to TMZ.