Janet Jackson has confirmed that she will not be performing at the planned tribute concert for her brother, Michael Jackson, but with good reason.

The show, scheduled for Oct.8 at Cardiff's Millennium stadium, coincides with the trial of MJ's doctor, which begins on Sept. 27. Dr. Conrad Murray is accused of involuntary manslaughter for administering a lethal dose of medication to the late singer.

"Because of the trial, the timing of this tribute to our brother would be too difficult for me," Janet said in a statement. The singer was never announced as a performer at the upcoming event.

The concert will be headlined by Christina Aguilera, Cee Lo Green and Smokey Robinson, and will reportedly feature a viral performance by Beyonce. However, the event has ultimately divided the family and stirred up controversy.

Michael's mother, Katherine, and his sister, LaToya,  have supported plans for the Michael Forever Tribute show, but brothers Randy and Jermaine are not aligned with its organization and timing. Fans have also voiced their opposition of the concert, given the pending trial.

Murray has pleaded not guilty to the charge of involuntary manslaughter, and faces a four year prison term if convicted. The trial is expected to last four to six weeks.