Mitch Winehouse, the father of late Amy Winehouse, discusses his daughter's tragic death, her struggle with addiction, and the real story behind her biggest hit, "Rehab".

In his revealing new memoir, Amy, My Daughter, he describes how performing songs from her hit record Back To Black became agonizing after her break-up with her husband, Blake Fielder-Civil. But he maintains that in the weeks before her death, she was making real progress in her battle with alcoholism.

In this extended version of the interview, he speaks out against critics who have accused the family of enabling his daughter's addiction.