David's death came after a period of ill health, which saw him hospitalised over the weekend. "Thank you for the abundance and support you have shown these many years", the statement read.
Cassidy was born on April 12, 1950, in New York City to actors Jack Cassidy and Evelyn Ward, grew up in West Orange, New Jersey, and moved to California when he was still a boy. Due to their vocation, he was raised during his early years by his maternal grandparents in suburban New Jersey. Beau has followed in his parents' footsteps - according to his IMDB bio, he is a singer, songwriter and actor based in NY and Los Angeles. Both singers sang bubblegum pop music and had songs about puppies: David with "The Puppy Song" and Donny with his signature 1972 ballad "Puppy Love". In 1969, he signed with Universal Studios and made his Broadway debut in the show The Fig Leaves Are Falling. Cranston called him an "exceptional person & talent".
Cassidy's family, which includes two children and three brothers, has opted to cremate the singer and celebrate his life with a ceremony instead of a burial or funeral, according to the Blast. Dana Delany posted a clip of the time she got to sing "I Think I Love You" with Cassidy.
One of Cassidy's contemporaries, Marie Osmond also said: "Heartbroken over the passing of David Cassidy".
Some of his most famous songs include Cherish, Could It Be Forever, How Can I Be Sure, and Daydreamer.
Late in the decade, he returned to acting with guest spots on Police Story and his own series David Cassidy: Man Undercover which lasted for one season.
In 2008, Cassidy admitted he had an alcohol problem which led to a number of legal problems including multiple DUI arrests along with a 2015 accident in Florida where he was charged with leaving the scene of an accident. The singer had revealed earlier this year that he had dementia and would stop performing so he could "enjoy life".
With Cassidy when he died were his brothers Shaun, Patrick and Ryan, his children Beau and Katie, his nephews and his ex-wife Sue.