Davy Jones of the The Monkees, who sang lead on many of the band's hits including "Daydream Believer," died in his sleep of a heart attack Wednesday morning in Florida, his rep Deborah Robicheau has confirmed.

According to TMZ, the Martin County medical examiner's office received a call from Martin Memorial Hospital informing them that Jones had died. He was 66.

Jones was the youngest member of the hit-making Monkees, a pre-fabricated rock quartet formed in 1966 to star in a television show of the same name. His good looks and British charm paired well with the American members of the group, drummer-singer Micky Dolenz, guitarist Michael Nesmith and bassist Peter Tork.

Born in Manchester, England, Jones began his career as a teen actor and appeared as the Artful Dodger in a West End production of "Oliver!" -- later moving to the Broadway production where he earned a Tony nomination. After gaining fame with The Monkees, Jones made a string of TV appearances, mostly as himself, in hit shows including "The Brady Bunch," "Love, American Style" and "My Two Dads." He also returned to the stage in "Oliver!" but as Fagin.

With The Monkees, which released nine albums between 1966 and 1970, Jones sang lead on hits including "Daydream Believer," "I Wanna Be Free," "Shades of Gray" and "Valleri." The TV series about four aspiring musicians sharing a beach house ran for two seasons -- between 1966-68 -- totalling 58 episodes. The sitcom won two Emmys and because of syndication and the power of Nick at Nite, the band's zany adventures live on for younger generations.

The band shed their bubblegum sound by the time of 1968's "Head," a psychedelic-themed film and album. Co-written and produced by actor Jack Nicholson, the cult classic was the band's lone feature film.

Various incarnations of the band have continued recording and touring throughout the years. Jones' bandmates have not commented on the news of Jones' death.

Jones is survived by his wife Jessica and four daughters.

Stay tuned for more news on this story as it develops.