The English-born lead singer of the 1960s pop group suffered a fatal heart attack this morning (February 29) and passed away in his sleep, his publicist confirmed.
He had complained of chest pains the previous evening at his home in Indiantown, Florida, according to TMZ.
Jones is survived by his wife Jessica and four daughters from two previous marriages.
Joining The Monkees in 1965, the star rose to fame with hits like 'Last Train to Clarksville', 'Daydream Believer', 'I Wanna Be Free' and 'I'm a Believer'.
> The Monkees' greatest songs - video
> Monkees singer Davy Jones: A life in pictures
After the group initially split in 1970, Jones toured solo, before having unsuccessful stints in the band Dolenz, Jones, Boyce & Hart.
On Saturday, February 18, a night before his last known performance in Oklahoma, Jones was captured on video singing Monkees classic 'It's Nice To Be With You'.
Also an actor, Jones appeared in Coronation Street and Z-Cars as a teenager. Later in life, he made cameos in children's shows The Brady Bunch and SpongeBob SquarePants.
Watch The Monkees perform 'Daydream Believer' below:
Scroll through a gallery of Davy Jones's life and career below: