The G-Clefs
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- 1961
I Understand (Just How You Feel) 
- The G-Clefs entered the UK charts on 30 November 1961, spent 12 weeks in the charts and reached number 17.
- 1961
- I Understand (Just How You Feel) - The G-Clefs entered the US charts on 16 September 1961, spent 17 weeks in the charts and reached number 9.
- 1962
- A Girl Has To Know - The G-Clefs entered the US charts on 10 March 1962, spent 5 weeks in the charts and reached number 81.