Knock, Knock Who's There?
: Mary HopkinDate: 03/1970
Comment:
written by Geoff Stephens & John Carter
| Chart | Debut date | Peak pos. |
|---|---|---|
| UK | 28/03/1970 | 2 |
 |  |  |
| Mary Hopkin singles chronology | ||
|---|---|---|
| Temma Harbour (01/1970 • 159 pts) | Knock, Knock Who's There? (03/1970 • 179 pts) | Que Sera, Sera (Whatever Will Be, Will Be) (07/1970 • 24 pts) |
| Mary Hopkin singles by points | ||
|---|---|---|
| Temma Harbour (01/1970 • 159 pts) | Knock, Knock Who's There? (03/1970 • 179 pts) | Goodbye (04/1969 • 270 pts) |
Music video
| Song versions | |||
|---|---|---|---|
1970 • Mary Hopkin  • Knock, Knock Who's There? |  | ||
| 1970 • Andra Willis • Knock, Knock Who's There |  | ||
| 1972 • Mary Hopkin • Knock, Knock Who's There | | ||