She has admitted her Army Sergeant [explains a lot] father Fausto made life hell for her family and she used music as an escape from the trauma of her beatings.
She said: 'I witnessed a lot of unpleasant things - a lot of pushing and shoving and fighting and quarrelling.
'Growing up I did not feel safe. Feeling powerless is the worst feeling in the world.
'I turned to singing as an outlet. The pain at home is where my love for music came from.'
Her comments came during an interview with the TV entertainment show E!.
Her mother Shelly recalled in the interview how she found Christina, then aged four, with blood pouring from her face.
Shelly said: 'I scooped her up and said, "Oh my God. What's wrong?" She told me, "Daddy wanted to take a nap and I made too much noise."'
Aguilera's mother eventually fled from her violent husband, taking her daughters to live with their grandmother. Her ten year marriage ended in 1989.
Christina, 28, said she turned to singing to blot out the pain of the abuse. [It's quite possible that she may have blocked out/dissociated some of the worst abuse]
'I turned to singing as an outlet,' she said.
'The pain at home is where my love for music came from.'
Christina said her father had begged for forgiveness, but she wants nothing to do with him.
She said: 'I let him back into my life briefly but I soon realised that he is not necessary in my life.' [not when she has other handlers]
In 2002, Fausto denied allegations that he had abused Christian and her sister Rachel.
He retaliated: 'My relationship with her mother was tense and I wasn't perfect. But I love Christina and her sister Rachel.
'Shelly and I disagreed on a lot of things and we both had hot tempers.
'I'm sorry to have ever raised a hand to my wife, but it was never brutal like Ike and Tina Turner.' [Sure...]