Song fit

Can you sing BIRDS OF A FEATHER by Billie Eilish?

BIRDS OF A FEATHER by Billie Eilish runs A3 to D5 (17 semitones), rated moderate for karaoke. Hum for 30 seconds to see your exact percent fit before you step up.

All Billie Eilish songsmoderate songsComfortable for altos and mezzos, with soft low verses at A3 and a bright belted climb to D5 in the final chorus.
A3D5
Low noteA3
High noteD5
Span17 stA3 – D5
Tempo105 BPM
KeyD major89% confidence
BAR-READY91Crowd-ready: crowd knows it, big singalong energy, flagged crowd-pleaser.
How this number is built

Crowd-pleaser flag: +4

Not yet measured: song length, instrumental dead air, lyric density, end-of-song key change. Bar-Ready will fold these in as they land.

Vocal character

airy glow · alto, sunlit build

Editorial estimate, used as a minor fine-tuning signal alongside your vocal range, not a substitute for hearing the song.

Test your voice: see your overlap in 10 seconds.

Vocal Notes

Singing BIRDS OF A FEATHER: what your voice is in for

BIRDS OF A FEATHER hides a slow bloom inside a breezy groove: most of the song drifts warmly through the middle of the A3 to D5 researched range, until the final stretch lifts into sustained, head-voice heights that recolor everything before them. The deciding moment in this Billie Eilish hit is that late ascent: after minutes of casual warmth, the voice must suddenly produce its most delicate, exposed register on demand.

The technique is the saved surprise: keeping the early sections genuinely relaxed, then floating the climactic high phrases with pure, vibratoless head voice that swells only at the very end. Altos and mezzos both hold the full range inside their bands; the page's key math offers an alto a two semitone drop to C major and a mezzo a one semitone lift to D# major, both minor tweaks on an already friendly layout. Sopranos lose three bottom semitones of the groove sections. Tenors can carry the body of the song an octave down and take the finale in falsetto, a reading that genuinely works.

Practice cue: practice only the final ascent, cold, first thing in rehearsal. If you can float it before warming up fully, the performed version, arriving warm, becomes a gift.

Written from this song's researched range on file, A3 to D5 (17 semitones), original key D major. July 2026.

Sing It

Sing BIRDS OF A FEATHER by Billie Eilish With Lyrics

Sing along with the lyrics in the karaoke-style video below, then compare the song against your Vocal ID.

Embedded via YouTube. HumMatch does not publish lyrics directly.

What key is BIRDS OF A FEATHER in?

Original keyD major89% confidence
Tempo105 BPM

HumMatch's audio analysis reads BIRDS OF A FEATHER in D major at 89% confidence and about 105 BPM, a confident read, so the original key shown here is a solid starting point for practice or transposition.

The Your Key card on this page shows whether D major fits your measured voice or exactly how far to shift it. Free, from a 30-second hum.

Best key for BIRDS OF A FEATHER by voice type

A general starting point by voice type, not your own measured range. Take the free vocal range test to see the exact key for your voice.

BassG# major (-6)
BaritoneG# major (-6)
TenorG# major (-6)
AltoC major (-2)
Mezzo-sopranoD# major (+1)
SopranoG major (+5)

Can I sing BIRDS OF A FEATHER at karaoke?

Spanning 17 semitones, BIRDS OF A FEATHER ranks among the top 69% widest in Pop songs HumMatch tracks.

Highest and lowest notes

The available song-fit estimate places the low note around A3 and the high note around D5. If either edge feels tense, try a different key.

Vocal style

D5 is BIRDS OF A FEATHER's ceiling: out of a tenor's comfort zone, but well within an alto's.

Karaoke difficulty

BIRDS OF A FEATHER rates 94/100 for karaoke familiarity, more than the 59/100 median for the typical Pop song HumMatch tracks.

Who it likely fits

BIRDS OF A FEATHER's 65/100 difficulty score largely comes down to that top-69%-widest span for Pop.

Who may struggle

BIRDS OF A FEATHER clocks in at 105 BPM in D major: slower than a typical Pop pick.

Did this song fit your voice?

Is this song data wrong? Suggest a fix.

Range Guide

BIRDS OF A FEATHER is estimated around A3 to D5. Compare that with your Vocal ID before choosing the original key. If your comfortable high note is below the song’s hardest section, try a lower key or one of the safer alternatives below.

A3D5

Perfect For These Voice Types

FIT

Comfortable for altos and mezzos, with soft low verses at A3 and a bright belted climb to D5 in the final chorus.

Best when your Vocal ID overlaps the main melody without strain.

Best For

DRIVE

Road Trip

Shared playlist pick

PRACTICE

Practice

Build confidence

GROUP

Karaoke Night

Room-friendly planning

Songs like BIRDS OF A FEATHER you can sing

Range labels come from HumMatch’s researched catalog. Take the free vocal range test to see your % on every one of these.

Song fit FAQ

What vocal range do I need to sing BIRDS OF A FEATHER?

BIRDS OF A FEATHER spans roughly A3 to D5: about 17 semitones. Your safest move is to compare that against your own Vocal ID.

What is Billie Eilish's vocal range?

Across the 16 Billie Eilish songs with researched vocal ranges on HumMatch, the sung notes run from E3 to G5, about 27 semitones (roughly 2.3 octaves). See the full Billie Eilish vocal range guide for voice type and the hardest songs.

Is BIRDS OF A FEATHER hard to sing?

BIRDS OF A FEATHER scores 65/100 for karaoke difficulty on HumMatch, which rates as moderate. BIRDS OF A FEATHER rates 94/100 for karaoke familiarity, more than the 59/100 median for the typical Pop song HumMatch tracks.

What is the vocal style of BIRDS OF A FEATHER?

D5 is BIRDS OF A FEATHER's ceiling: out of a tenor's comfort zone, but well within an alto's.

What voice type fits BIRDS OF A FEATHER?

BIRDS OF A FEATHER's 65/100 difficulty score largely comes down to that top-69%-widest span for Pop.

Can I sing BIRDS OF A FEATHER at karaoke?

BIRDS OF A FEATHER may work at karaoke if the original key sits comfortably for you and you know where the risky chorus or low phrases happen.

How can I check if BIRDS OF A FEATHER fits my voice?

Hum 3 notes in HumMatch and compare your Vocal ID against BIRDS OF A FEATHER, safer alternatives, and higher-risk picks.

What key is BIRDS OF A FEATHER by Billie Eilish in?

BIRDS OF A FEATHER by Billie Eilish is in D major. HumMatch's audio analysis detects this key at 89% confidence, and that score is shown on the page so you know how solid the read is.

What is the BPM of BIRDS OF A FEATHER?

BIRDS OF A FEATHER runs at about 105 BPM, as measured by HumMatch's audio analysis.

Find Every Song That Fits YOUR Voice

HumMatch analyzes your vocal range from a short hum, then shows songs that actually fit.