Japan Top 100 songs chart
HAPPY BIRTHDAY - back number on Japan top 100 recent charts
| Date | Week | Position | Status |
|---|---|---|---|
| 2026-04-13 | 16 | 39 | |
| 2026-04-06 | 15 | 37 | |
| 2026-03-30 | 14 | 31 | |
| 2026-03-16 | 12 | 32 | |
| 2026-03-09 | 11 | 30 | |
| 2026-03-02 | 10 | 32 | |
| 2026-02-23 | 09 | 81 | |
| 2026-02-16 | 08 | 37 | |
| 2026-02-09 | 07 | 32 |
