David Cassidy performs final touring concert in wake of dementia diagnosis

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A week after announcing his escalating battle with dementia, David Cassidy has performed his expected last-ever touring concert. The star, 66, took to Manahttan's B.B. King Blues Club & Grill Saturday night to perform all the hits of his 40+ year career.

On top of his dementia diagnosis, Cassidy is fighting laryngitis and arthritis -- but thankfully, his fans eased some of the pressure. When he asked the crowd to join in for his 1970 debut single "I Think I Love You," they happily obliged.

David Cassidy In Final Concert - New York, NY

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During a few candid moments, Cassidy opened up about this difficult time in his life.

"I'm not sure if it was Dr. Phil or someone recently asked me, 'What do you want your legacy to be?'" he said. "I guess the fact that everything I've done in my life was to bring light and love into all of the world that I was able to touch because you gave it back to me a hundred thousand times."

"So this," he continued. "As long as I have breath left in my body -- ignoring laryngitis, I'm going to sing this song for the rest of my life. And it is something that I treasure, I know many of you do as well, it's had such an impact on my life. I don't know how to describe it."

David Cassidy In Concert - New York, NY

Getty

According to reports, Cassidy told the audience that arthritis makes it increasingly tricky to play guitar.

Despite his ailments, Cassidy was in good spirits through most of his performance. Photos show him cuddling his guitar, chatting with the audience, and getting a little emotional at times. See all the pics:

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David Cassidy's final concert
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David Cassidy's final concert
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
NEW YORK, NY - MARCH 04: David Cassidy performs his final touring concert at B.B. King Blues Club & Grill on March 4, 2017 in New York City. (Photo by Bobby Bank/Getty Images)
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