David Cassidy is giving thanks.

In the wake of his diagnosis with dementia, the Partridge Family singer and actor tweeted out to his fans on Tuesday, writing, "Thank you to everyone who has reached out offering their love and support."

WATCH: David Cassidy Reveals Dementia Diagnosis, Says He Was 'In Denial' Yet 'Always Knew This Was Coming'

This week, ET confirmed the 66-year-old performer had been diagnosed with the memory loss syndrome, which Cassidy recently shared he had feared for some time.

"I was in denial," Cassidy admitted to People, "but a part of me always knew this was coming."

Cassidy opened up to ET last year following an onstage incident, explaining that it was prompted by medical procedures on his eyes.

WATCH: David Cassidy Reveals the Real Story Behind His Onstage Tirade: 'I Couldn't See'

"I could've fallen off the front of the stage because I couldn't see," said Cassidy, who's had five eye surgeries over the last few decades and told the audience member that he was "highly sensitive" to bright lights. "I got to a point where I was really angry."

Watch the video below for more.