Bad Boy by Red Velvet
Bad Boy by Red Velvet is estimated around C3 to A4, based on Red Velvet's typical range; song-level verification is pending. Measure your own range free to see how this song fits your voice.
Estimated from the artist’s full range, which likely spans multiple singers or harmonies; the lead melody is probably narrower. Verification pending.
Practice before you pick it.
We do not publish lyrics directly. Find a karaoke version on YouTube, then come back to compare the song against your Vocal ID.
Can I sing Bad Boy at karaoke?
Bad Boy covers 21 semitones top to bottom, good for a top-1% placement among K-Pop songs HumMatch tracks.
Highest and lowest notes
The available song-fit estimate places the low note around C3 and the high note around A4. If either edge feels tense, try a different key.
Vocal style
A4 is Bad Boy's ceiling: out of a baritone's comfort zone, but well within a tenor's.
Karaoke difficulty
That top-1%-widest span for K-Pop is a big part of why Bad Boy scores 55/100 for karaoke difficulty.
Who it likely fits
Dropping 4 semitones would bring Bad Boy's peak note inside a typical baritone's comfortable range.
Who may struggle
HumMatch is still gathering enough data on this song for a deeper breakdown.
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Range Guide
Bad Boy is estimated around C3 to A4. 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.
Perfect For These Voice Types
Vocal fit not yet researched -- check the range against your Vocal ID.
Best when your Vocal ID overlaps the main melody without strain.
Best For
Road Trip
Shared playlist pick
Practice
Build confidence
Karaoke Night
Room-friendly planning
Try Transposing Lower
If the chorus or highest phrase feels tight, shift the song down a few semitones before performing. Most karaoke apps let you adjust pitch.
Songs like Bad Boy 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.
Easier alternatives
If it feels high, try a lower key or start with an easier song from the same artist or genre.
Song fit FAQ
HumMatch estimates Bad Boy at C3 to A4 (about 21 semitones), based on Red Velvet's typical performed range; song-level verification is pending. Compare it against your own Vocal ID and test the chorus first.
HumMatch has not verified a researched vocal range for Red Velvet yet. Estimated ranges across 8 songs suggest roughly C3 to A4 (roughly 1.8 octaves); treat that as an estimate until song-level research lands.
Bad Boy scores 55/100 for karaoke difficulty on HumMatch, which rates as moderate. That top-1%-widest span for K-Pop is a big part of why Bad Boy scores 55/100 for karaoke difficulty.
A4 is Bad Boy's ceiling: out of a baritone's comfort zone, but well within a tenor's.
Dropping 4 semitones would bring Bad Boy's peak note inside a typical baritone's comfortable range.
Bad Boy may work at karaoke if the original key sits comfortably for you and you know where the risky chorus or low phrases happen.
Hum 3 notes in HumMatch and compare your Vocal ID against Bad Boy, safer alternatives, and higher-risk picks.
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