Holly Madison Book Signing For "Down The Rabbit Hole: Curious Adventures And Cautionary Tales Of A Former Playboy Bunny" [Getty Images]

LAS VEGAS, NV - JULY 01: Model and television personality Holly Madison attends a signing for her new book "Down the Rabbit Hole: Curious Adventures and Cautionary Tales of a Former Playboy Bunny" at a Barnes & Noble Booksellers on July 1, 2015 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

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