‘The Partridge Family’ Actor David Cassidy Is Battling Dementia

David Cassidy is fighting memory loss.

The ’70s heartthrob, who’s best known for his role on The Partridge Family, recently revealed he’s struggling with dementia after an alarming video of him acting incoherently at a concert surfaced online.

“I was in denial, but part of me always knew this was coming,” he told People, adding his mother suffered from the disease before she passed away in 2012. “In the end, the only way I knew she recognized me is with one single tear that would drop from her eye every time I walked into the room. … I feared I would end up that way.”

The revelation came after TMZ published a clip of the 66-year-old slurring his speech while performing in California on Saturday (Feb. 18, 2017), sparking concerns that he was inebriated during the show. In the video, Cassidy struggled to remember the lyrics to songs before almost falling off the stage.

The actor, who’s previously been in and out of rehab, later announced his retirement as a touring musician.

“I want to focus on what I am, who I am and how I’ve been without any distractions,” he said in his interview with People. “I want to love. I want to enjoy life.”