Singer Amy Winehouse's husband, Blake Fielder-Civil, has asked for a divorce and is demanding she pay him $1.5 million - or he'll write a book about their time together. He's already told a British tabloid that she's used heroin and crack, cut herself and spent time with prostitutes. Civil has also told the press that divorcing his wife will "save her life." Civil was recently sent back to prison after he failed to complete a court-ordered drug rehab program. He will serve out his 27-month sentence for assault and attempting to avoid justice.