EXCLUSIVE: Debbie Rowe to Undergo Chemotherapy for Cancer, Says Daughter Paris Jackson Is Her Rock

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Debbie Rowe is preparing for her chemotherapy treatments.

The ex-wife of Michael Jackson, who was diagnosed with breast cancer earlier this summer, tells ET that she will be undergoing six treatments of chemo, once every three weeks, followed by radiation everyday for five weeks. And thankfully, it's not a fight the 57-year-old has to go through alone.

WATCH: Prince Jackson Celebrates Dad Michael Jackson's 58th Birthday With Touching Sonnet

Debbie tells ET that her daughter, Paris Jackson, is her rock and a tremendous support throughout this whole process. The 19-year-old actress and her mom have been in constant contact since Debbie's diagnosis in July, when ET learned that the two had reconnected.

Meanwhile, it's been an emotional time for the family, who spent Monday honoring what would have been the late King of Pop's 58th birthday.

MORE: Michael Jackson Honored With Tributes From Daughter Paris and Brothers on 7th Anniversary of Late Music Icon's Death

Paris shared a sonnet her brother, Prince Jackson, posted to Instagram honoring their father, writing, "Proud of you big brother. and happy birthday to the man that means more to us than anything and anyone ever could."

Watch the video below for more on Debbie's cancer diagnosis.