# Birthday – Katy Perry: piano chords

Birthday by Katy Perry uses 3 chords in G major; difficulty on the piano: easy.

## Chords in the song

[Cadd9](https://pianokitty.com/c/Cadd9), [Am](https://pianokitty.com/c/Am), [G](https://pianokitty.com/c/Gmaj)

## Chord sheet

- Intro 1: Cadd9 Am Cadd9 Am G
- Verse 1: Cadd9 Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G
- Chorus 1: Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G
- Verse 2: Cadd9 Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G
- Chorus 2: Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G Cadd9 Am Cadd9 Am G Cadd9 Am Cadd9 Am G
- Bridge 1: Cadd9 Am G Cadd9 Am G Cadd9 Am G Cadd9 Am
- Chorus 3: Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G Cadd9 Am G Cadd9 G Am G

## Questions

### Which chords does Birthday by Katy Perry use?

Different chords: 3. They are all in the list under “Chords in the song”.

### What key is Birthday by Katy Perry in?

The chords fit G major. This is estimated from the chords, so the recording may be in another key.

### How hard is Birthday to play on the piano?

Difficulty: easy. The rating counts the different chords (3), 7th and extended chords, and chords with another bass note.

[Practice this song](https://pianokitty.com/app?subject=songs&spec=%3Cintro_1%3E+Cadd9+Am+Cadd9+Am+G+%3Cverse_1%3E+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+%3Cchorus_1%3E+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G+%3Cverse_2%3E+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+%3Cchorus_2%3E+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+Am+Cadd9+Am+G+Cadd9+Am+Cadd9+Am+G+%3Cbridge_1%3E+Cadd9+Am+G+Cadd9+Am+G+Cadd9+Am+G+Cadd9+Am+%3Cchorus_3%3E+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G+Cadd9+Am+G+Cadd9+G+Am+G&seq=inOrder&title=Katy+Perry+-+Birthday)

[Piano chords for popular songs](https://pianokitty.com/songs/browse)

Chord data: [Chordonomicon](https://huggingface.co/datasets/ailsntua/Chordonomicon), [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/). Chords are transcriptions and can differ from the recording.

https://pianokitty.com/songs/katy-perry/birthday