| Title | Highest Position | Date | Buy |
|---|---|---|---|
| Johnny's New Baby Sisters/Porta Johnny | 93 | 01 Feb 2021 | £2.49 buy |
| Runaway Johnny/Johnny On the Spot | 87 | 05 May 2021 | £2.49 buy |
| A Holly Johnny Christmas / Johnny's 1st Annual Snow Ball | 68 | 31 May 2023 | £2.49 buy |
Johnny Test chart performance in other countries: