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OTRC: Vanessa Williams' dog is lost again - help find Enzo (Photo)

Vanessa Williams' Yorkie dog, Enzo, appears in an undated photo. / Vanessa Williams appears in a scene from the 2010 episode of 'Desperate Housewives.' (vanessawilliams.com / ABC)

Vanessa Williams recently lost her dog again after the Yorkie, named Enzo, fell down a hill outside the backyard of her Hollywood Hills house during a rainstorm.

The 47-year-old singer and actress, who currently stars in the ABC drama series "Desperate Housewives," is calling on fans to help her find her pet.

"In a torrential rainstorm, Enzo slipped down our back garden in the evening of December 20th and couldn't get back up the hill," said a message on Williams' website. "Someone picked up our 4-year-old black & tan, 6-pound, neutered yorkie on Roscamare Road near Mulholland in Bel Air, California," it said. "He may have lost his collar. "We're heartbroken! Please email melliangroup@mac.com with any information on Enzo's whereabouts!"

Enzo also disappeared from the yard of her New York home in May 2007, prompting Williams to file a police report. The dog, which has a microchip ID embedded in his body, was found about two weeks later in a shelter.