No Doubt star Tom Dumont reveals shock diagnosis

No Doubt star Tom Dumont reveals shock diagnosis No Doubt star Tom Dumont has been diagnosed with early-onset Parkinson's disease and it's been a "struggle every day". 13 April 2026 No Doubt star Tom Dumont has been diagnosed with early-onset Parkinson's disease. Tom Dumont has opened up about his health crisis The 58-year-old guitarist - who joined the band in 1988 - revealed he started experiencing symptoms "a number of years ago" and admitted it's been a "struggle every day" but he's currently "doing well" and is still able to play music.