Later they added lead singer Glenys Lynne and changed the group's name to "Four Jacks and A Jill".
In 1968 they cracked the American charts with the song "Master Jack", hitting the Billboard Hot 100 at no.
1 in South Africa, Canada, Australia, New Zealand, Malaysia, and Rhodesia (now Zimbabwe).
[2] They have recorded and produced albums for a range of sing-along educational story books for various South African charities.
[citation needed] Bass Guitar: Lead Vocals: Drums: Guitar: Trumpet: Piano: Keyboard: In the mockumentary film This is Spinal Tap, the character Lt. Robert Hookstratten recommends Four Jacks and a Jill to the members of Spinal Tap.