Hollywood lost one of its pivotal music industry professionals when it was learned that Joe Jackson, famed talent manager and father of pop icons Michael and Janet Jackson, passed way on Wednesday (June 27).

The manager's family revealed to TMZ that Jackson, who had been fighting terminal pancreatic cancer as early as June, died at 3:30 a.m. in Los Angeles. He was 89.

Jackson's death arrives after his years-long history with medical- and health-related struggles, having suffered a stroke and three heart attacks in his lifetime.

In the moments that followed the news of his passing, celebrities, artists and loved ones closest to the departed Jackson member took to Twitter to send their condolences.

See how the Jackson family and stars alike are reacting to his death, below.