John Michael O'Keefe was an Australian rock and roll singer whose career began in the early 1950s. A pioneer of Rock music in Australia, his hits include "Wild One" (1958), "Shout!" and "She's My Baby". In his twenty-year career, O'Keefe released over fifty singles, 50 EPs and 100 albums. O'Keefe was also a radio and television entertainer and presenter.

Rock music in Australia, also known as Oz rock, Australian rock, and Aussie rock, has a rich history, rooted in an appreciation of various rock genres originating in the United States and Britain, and to a lesser extent, in continental Europe and Africa. Australian rock has also contributed to the development of some of these genres, as well as having its own unique Australiana sound with pub rock and its Indigenous music.