LOS ANGELES, CALIFORNIA, UNITED STATES (JULY 19, 2013) (REUTERS) - The mother of late pop star Michael Jackson said in court on Friday (July 19) that concert promoter AEG Live failed to get her son proper medical attention when he became sick while preparing for a comeback tour in 2009.

Katherine Jackson, 83, broke down when recalling the death of her famous son and later asked to suspend her testimony after growing distressed under cross-examination. It was the first time Jackson had taken the stand in the trial in which she and Michael's children are suing AEG Live.

The lawsuit alleges that privately held AEG hired Dr. Conrad Murray as his personal physician. Murray was caring for the singer as he prepared for the shows and was convicted of involuntary manslaughter in 2011 for administering the propofol that killed Jackson.

Katherine Jackson's testimony on Friday ranged from a tearful recollection of learning her son had died to accounts of her family's humble beginnings in a four-room house in Gary, Indiana.

Jackson's attorney Brian Panish spoke to the media after court adjourned early for the day. He said that Katherine Jackson was tired and trying to do the best she could.

"She only had a few hours sleep. I think counsel was asking some pretty complex questions very fast and she was getting confused and tired. She is 83 years young and I think she was trying to answer the questions the best she could," said Panish.

Under cross-examination from AEG attorney Marvin Putnam, Jackson grew frustrated and confused and ultimately asked to stop shortly after a lunch break. She returns to the stand to continue her testimony on Monday (July 22).