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Bettmann / Getty Images
1970
Cassidy and his screen mom film scenes in 1970.
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Brad Elterman/FilmMagic
1970
Cassidy goofs off at his home in Los Angeles in 1970.
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Brad Elterman/FilmMagic
1970
David Cassidy is photographed at his home in 1970.
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ABC Photo Archives/ABC via Getty Images
1972
The crooner is photographed in 1972.
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Photoshot/Getty Images
1972
Cassidy shows off his feathered hairstyle and his tight, tight pants in London.
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ABC Photo Archives/ABC via Getty Images
1973
Photographed on Sept. 9, 1973, Cassidy filmed a scene for an episode called, Beethoven, Brahms and Partridge.
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Michael Marks/Michael Ochs Archives/Getty Images
1982
Cassidy poses for a portrait session in the studio in March 1982 in Los Angeles.
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Getty Images
1977
Shaun Cassidy and David Cassidy are photographed David's Las Vegas wedding to Kay Lenz at The Little Church Of The West in Las Vegas in 1977.
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David Redfern/Redferns
'80s
The singer rocks it out in the '80s.
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The LIFE Picture Collection/Getty Images
1983
Cassidy and ex wife Meryl-Ann Tanz were photographed on March 1, 1983.