He also underwent another brain surgery in January 2024. In the interview published April 30, Bolton said he finished radiation and chemotherapy in October and his most recent scan was clear in early April.

The Grammy winner opens up to PEOPLE in this week's cover story about staying hopeful amid a devastating diagnosis

Michael Bolton is sharing new details about a somber health diagnosis he’s been navigating over the last year and a half.In a new interview with People, the singer revealed that he has glioblastoma, a form of brain cancer that the Cleveland Clinic defines as the “most common type of malignant (cancerous) brain tumor in adults.