Randy Jackson has been hospitalized with a suspected mild heart attack.

The 48-year-old singer - who is the brother of the late Michael Jackson - was taken to the Huntington Memorial Hospital in Pasadena yesterday and is said to be awaiting test results.

“It appears Randy has had a mild heart attack but he is OK.  He was joking around with his father and he is feeling pretty good all things considered. He’s been under a tremendous amount of stress lately but Randy’s a fighter. He’ll pull through,” a source said.

Randy is believed to have been working on arrangements for a memorial service for his late brother Michael, who died of acute Propofol intoxication in June last year. On Monday, Randy attended a Los Angeles courthouse with family including sister Janet Jackson for a hearing into the involuntary manslaughter case against Dr. Conrad Murray, the man accused of being involved in the icon’s death.
The star has also been playing a key role in arranging plans to allow fans to enter Forest Lawn Memorial Park - where Michael is buried - to pay tribute to the King of Pop on the anniversary of his death later this month.