[Taking on a song with a wide vocal range] An S-class challenge track
Have you ever had a song you wanted to sing at karaoke, only to give up because the vocal range was too wide? Songs that span three octaves or feature virtuosic techniques rated at difficulty S are certainly challenging to master.
But if you understand their appeal and learn some vocal tips, you’ll find more joy in taking on the challenge.
In this article, we focus on popular songs known for their wide ranges and highlight key points to keep in mind when singing them at karaoke.
Use it as a guide to make your karaoke life even more fulfilling!
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[Challenging Songs with a Wide Vocal Range] S-Rank Difficulty Challenge Songs (51–60)
WaterfallMAZZEL
MAZZEL is one of the most popular boy groups in Japan, drawing nationwide attention with performances that rival those of K-pop idols.
Among their songs, the highly challenging Waterfall is a standout recommendation.
Rather than being extremely wide in vocal range, it’s a track that repeatedly ventures into the high register, demanding strong pitch accuracy.
If someone can deliver the falsetto in the chorus while weaving in low-register rap, you could say they possess considerable vocal prowess.
Before it disappearsCö shu Nie
Cö shu Nie is a band drawing attention for their sophisticated musicality—the name is pronounced “Ko-shu-nie.” Among their recently buzzed-about songs, the one I especially recommend for its wide vocal range is Kiechau Mae ni (“Before It Disappears”).
This track is centered in the mid to high register and leans toward a soft vocal style.
However, because it features quite a few high falsetto passages, maintaining the original softness while singing those falsettos is extremely challenging for non-professionals.
electric shockYonezu Kenshi
Kenshi Yonezu is a singer-songwriter known for complex rhythms and song structures.
His track “Kanden” features intricate rhythms that make it challenging to sing.
In particular, the timing right as you enter the chorus can be tricky, so it may help to practice it several times until you get used to it.
In the latter half of the chorus, where there’s a series of falsetto notes, the key is to keep your throat relaxed as you sing.
Also, the C melody contains a lot of unstable notes, so if you focus more on pitch than rhythm when practicing that section, you’ll be able to sing it well in performance!
KusushikiMrs. GREEN APPLE
When it comes to Mrs.
GREEN APPLE’s vocalist, Motoki Omori, he’s renowned for his exceptional singing ability.
Given how the band keeps releasing massive hits, it’s only natural their songs are popular in karaoke—but many people have probably been dismayed to find they can’t sing like Omori at all when they actually try.
The song Kusushiki, released in April 2025, is no exception: it’s hard to deny that perfectly delivering a melody line that seamlessly connects rhythmic sections with soaring ones, all while freely navigating a wide vocal range, is extremely difficult.
Another hallmark of Omori’s style is the delicate vibrato he adds to both the low notes and the falsetto.
On top of that, the rhythm in this track is quite tricky, so it really requires a lot of practice.
[Challenging Songs with a Wide Vocal Range] S-Rank Difficulty Challenge Songs (61–70)
1991Yonezu Kenshi
“1991,” the famous song by Kenshi Yonezu known as the theme for the film Five Centimeters per Second.
The lyrics, which seem to mirror both the protagonist and Yonezu himself, are highly emotional and have made the song popular at karaoke.
The piece spans a fairly wide vocal range from mid1F to hiD.
While the average pitch isn’t particularly high, the frequent leaps in melody make the overall impression quite demanding.
There are mix voice parts as well, but since they’re close to chest voice, people with an average vocal range should be able to manage it with practice.
Ghost of the SeaYonezu Kenshi
Kenshi Yonezu’s masterpiece “Umi no Yuurei,” released in June 2019, features a distinctly Japanese flavor and a fantastical melody, even among his works.
The A and B sections are somewhat subdued, and the moment the chorus begins, the pitch movement suddenly becomes very dramatic—making the song quite challenging in a straightforward musical sense.
While the piece employs mixed voice, falsetto also appears very frequently, so rather than strictly matching the original, it’s better to switch between falsetto and mixed voice within your own comfortable singing range.
rock starAdo
Ado, a female singer who enjoys overwhelming support from young people, possesses exceptional vocal ability, and almost every song she releases is notoriously difficult.
Her new track “Rockstar” is an exceptionally challenging piece that demands both power and delicate pitch control.
While falsetto is used sparingly, there are an unusually large number of high belted phrases in chest voice, and on top of that, repeated shouts appear throughout.
Without a doubt, it can be classified as S-tier in difficulty.