'David Cassidy: The Last Session' airs Monday night on A&E.
The late actor opened up about his health decline in a new documentary, 'David Cassidy: The Last Session,' premiering June 11 on A&E Network.
The musician died in 2017.
ET remembers the celebrities who died this year, including David Cassidy, Tom Petty, Hugh Hefner, Chester Bennington and Chris Cornell.
David died on on Tuesday, after being rushed to the hospital for organ failure last week.
The tributes and memories have been pouring in for one of the most famous teen idols of all time.
Jones played Cassidy's mom on 'The Partridge Family' and was his stepmom in real life.
The 59-year-old TV producer shared a heartbreaking tribute to his half-brother via social media on Wednesday.
Cassidy's rep confirmed on Tuesday that Cassidy had died at age 67.
Cassidy's rep told ET that he died 'surrounded by those he loved.'
Cassidy is survived by his 30-year-old daughter, Katie, and 26-year-old son, Beau.
A spokesperson for the legendary pop star tells ET that he has been in critical condition for five days and 'his organs are failing.'
ET can confirm the 67-year-old actor and musician was rushed to a hospital in Florida on Wednesday.
The 67-year-old performer has also been suffering with dementia.
