Song Metrics
- Key
- F
- Duration
- 1:14
- Tempo
- 135BPM
Happy 21st Birthday (You Are Twenty-One Years Old!) is a positive song by The Best Birthday Song Band Ever with a tempo of 135 BPM. It can also be used half-time at 68 BPM or double-time at 270 BPM.The track runs 1 minute and 14 seconds long with a F key and a major mode. It has low energy and is very danceable with a time signature of 4 beats per bar.