Black Sabbath frontman Ozzy Osbourne died following his battle with a genetic form of Parkinson's disease, while a brain expert says the singer's lifestyle could have contributed.

Morten Harket FILE PHOTO: Morten Harket of A-ha attends a press conference at Nordische Botschaften on September 12, 2017 in Berlin, Germany. He recently disclosed that he has Parkinson's disease.

Morten Harket, the lead singer of Norwegian band A-ha, whose Take On Me track remains one of the most popular songs from the 1980s, said on Wednesday that he had been diagnosed with Parkinson's ...

A-ha singer Morten Harket has revealed he has been diagnosed with Parkinson’s disease and may not be able to sing again.

(CNN) — Morten Harket has revealed he has Parkinson’s disease. The singer of a-ha, the band behind the 1985 hit and innovatively animated music video “Take On Me,” shared the news during ...

(CNN) — Morten Harket has revealed he has Parkinson’s disease. The singer of a-ha, the band behind the 1985 hit and innovatively animated music video “Take On Me,” shared the news during an interview ...