One of 3,000 letters sent by Johnny O’Keefe to ‘Sing Sing Sing’ club members, apologising for the tardiness of his reply.

Johnny O’Keefe performing for the 1st Australian Task Force at Nui Dat, Vietnam, 1969.

Johnny O’Keefe rehearsing dance moves with a bored look on his face on the set of the TV program 'Studio A'.

Dee Jays early line-up (Johnny ‘Catfish’ Purser, Keith Williams, Dave Owens, John Balken, Kevin Norton) 5/07/1957, most likely to promote debut single.

In 1955, Johnny heard 'Rock Around the Clock’, performed by Bill Haley and His Comets on the soundtrack to the movie Blackboard Jungle. It changed his life forever.

'Facts about Figures': self-published press release for JOK's debut single, '(You Hit the Wrong Note) Billy Goat', 1957.

Photo of Johnny with father Raymond and mother Thelma O'Keefe, c1970s.

'I am a Friend of Johnny O'Keefe' metal pin badge, c1957.

Fantales promotional chocolate box with image of Johnny O'Keefe (back view). 

Photo of newspaper billboards outside a newsagent announcing the death of JOK and Pope John Paul I in October 1978. Photographer: Peter Luck.