Michael Jackson's ex-wife Debbie Rowe struggled to keep her composure on Thursday (15Aug13) as she told a Los Angeles court that their daughter, Paris Jackson, has had "no life" since the pop superstar's death.

The former nurse wept as she described the terrible impact Jackson's 2009 passing had had on their two children, especially 15-year-old Paris, who allegedly attempted suicide in June (13) and is still receiving treatment for her emotional issues.

Rowe took to the stand for a second day on Thursday during her testimony as a defence witness for AEG Live bosses in the ongoing wrongful death lawsuit filed against them by Michael's mother, Katherine Jackson, and his three children.

She tearfully told jurors at Los Angeles County Superior Court about her daughter's struggle to cope, saying, "Their father is dead. I almost lost my daughter. She is devastated. She tried to kill herself. She is devastated. She has no life. She doesn't feel she has a life anymore."

Rowe was married to Jackson for three years from 1996 and the pair had two children together, Prince Michael, 16 and Paris. She was called to testify by lawyers for AEG Live executives in a bid to prove that Jackson had been struggling with substance abuse issues for years before they signed a contract for his ill-fated This Is It London residency.

Bosses at the concert promoters are also fighting accusations that they were responsible for hiring Dr. Conrad Murray, the physician convicted of inadvertently killing the superstar by giving him an overdose of surgical anaesthetic Propofol, insisting he served as the singer's personal doctor and was not directly employed by them.

The case continues.