Can you sing 100 Bad Days by AJR?
100 Bad Days by AJR runs A#2 to A#4 (24 semitones), rated moderate for karaoke. Hum for 30 seconds to see your exact percent fit before you step up.
Vocal character
quirky, theatrical indie pop · tenor, drop-driven builds and releases
Editorial estimate, used as a minor fine-tuning signal alongside your vocal range, not a substitute for hearing the song.
Singing 100 Bad Days: what your voice is in for
100 Bad Days covers a lot of ground on purpose: the researched range runs A#2 to A#4, a full 24 semitone span in Bb major, mirroring how AJR build a track from muttered storytelling up to shouted celebration. At a slow 72 bpm with the energy packed into bursts, the deciding moment is the chorus lift, where the melody vaults from the conversational basement into sustained singing near the top. The technique is gearshifting: moving between near speech, full voice and light top notes without letting the seams show.
Tenors are the intended home, and the page's key math has them singing it exactly as written in Bb major, though honesty requires the fine print: the top pokes one semitone over the tenor ceiling and the low dips two under the floor, both brief, both survivable at this tempo. Baritones fare well with the offered four semitone drop to F# major, spending rumble room they have to spare. Basses get a six semitone drop to E major from the key card. Altos are offered a five semitone lift to D# major, which rescues most of the low storytelling lines that otherwise sit seven below their floor.
Practice cue: pick one verse line and one chorus line and alternate them back to back ten times. The transition between them is the whole song. Then take your gearbox over to Burn the House Down, which plays a similar game.
Written from this song's researched range on file, A#2 to A#4 (24 semitones), original key Bb major. July 2026.
Sing 100 Bad Days by AJR 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 100 Bad Days in?
HumMatch's audio analysis reads 100 Bad Days in Bb major at 77% confidence and about 72 BPM, a reasonably confident read, so double-check the key by ear before committing to a transposition.
Can I sing 100 Bad Days at karaoke?
Spanning 24 semitones, 100 Bad Days ranks among the top 9% widest in indie pop songs HumMatch tracks.
Highest and lowest notes
The available song-fit estimate places the low note around A#2 and the high note around A#4. If either edge feels tense, try a different key.
Vocal style
On 100 Bad Days, A#4 climbs past what's comfortable for a tenor, though an alto can reach it without strain.
Karaoke difficulty
100 Bad Days rates 38/100 for karaoke familiarity, less than the 50/100 median for the typical indie pop song HumMatch tracks.
Who it likely fits
100 Bad Days's 65/100 difficulty score largely comes down to that top-9%-widest span for indie pop.
Who may struggle
At 72 BPM in Bb major, 100 Bad Days sits on the slower side for an indie pop pick.
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Range Guide
100 Bad Days is estimated around A#2 to A#4. 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
Works for tenors and higher baritones who can handle conversational low verses and a sustained Bb4 chorus.
Best when your Vocal ID overlaps the main melody without strain.
Best For
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Practice
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Songs like 100 Bad Days 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 too low, too high, or too exposed, compare it against your Vocal ID for safer picks.
Explore by voice: More songs for A#2-A#4 voicesSongs for tenor voice
Song fit FAQ
100 Bad Days spans roughly A#2 to A#4: about 24 semitones. Your safest move is to compare that against your own Vocal ID.
Across the 4 AJR songs with researched vocal ranges on HumMatch, the sung notes run from A#2 to C5, about 26 semitones (roughly 2.2 octaves). See the full AJR vocal range guide for voice type and the hardest songs.
100 Bad Days scores 65/100 for karaoke difficulty on HumMatch, which rates as moderate. 100 Bad Days rates 38/100 for karaoke familiarity, less than the 50/100 median for the typical indie pop song HumMatch tracks.
On 100 Bad Days, A#4 climbs past what's comfortable for a tenor, though an alto can reach it without strain.
100 Bad Days's 65/100 difficulty score largely comes down to that top-9%-widest span for indie pop.
100 Bad Days 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 100 Bad Days, safer alternatives, and higher-risk picks.
100 Bad Days by AJR is in Bb major. HumMatch's audio analysis detects this key at 77% confidence, and that score is shown on the page so you know how solid the read is.
100 Bad Days runs at about 72 BPM, as measured by HumMatch's audio analysis.
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