The Atomic Kitten star told housemates on the final night in CBB that she hadn't been playing a game or putting on an act: what you see is what you get.
Reflecting on the experience, she told them: "The relationships I have got with everyone are true bonds of friendship. I came into this house and I said to my partner, 'Don't worry because I am not going to change, I am just going to be Natasha Hamilton.'
"And I would say 99% of the time I have stayed true to that path so tomorrow when I walk out I am going to walk out with my head held high and I'm really really thankful for meeting all of you along the way."
Natasha will face Sherrie Hewson, Bobby Davro, Chloe-Jasmine and Stevi Ritchie, James Hill and Austin Armacost in the final.
CBB's finale airs at 9pm on Channel 5.