Christie Brinkley's Bombshell About Ex Billy Joel's Song 'Uptown Girl' (Exclusive)

Age-defying supermodel Christie Brinkley is dishing on her new memoir, aptly titled "Uptown Girl." "Extra's" Mona Kosar Abdi spoke with Christie, 71, who is laying her extraordinary life bare and opening up about the good times and the hard times, including the helicopter crash that almost took her life and four failed marriages. In the book, Brinkley dropped a bombshell about her ex Billy Joel's famous song "Uptown Girl." She told Mona, "It's a very interesting story. He'd actually started it f...