[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)
Silent JealousyX JAPAN
When people think of bands with lots of difficult songs, many probably imagine X JAPAN first.
TOSHI’s high-tone vocals are quite hard to replicate, and it’s no exaggeration to say most of their tracks are challenging.
Among X JAPAN’s songs, one I especially recommend is Silent Jealousy.
Its range is mid2B to hi C#, which isn’t particularly wide for X JAPAN, but most of the chorus sits between hi B and hi C#, making the chorus impressively high.
It’s a great practice piece for those looking to build endurance in their high-tone vocals.
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.
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.
AliensKirinji
Aliens, one of Kirinji’s signature songs.
It’s frequently featured in media like commercials in Japan, so many younger listeners may know it as well.
Despite its languid, world-weary vibe—which often leads to misunderstandings—the song actually spans a very wide vocal range.
The low notes are especially challenging, with the verses and pre-choruses staying consistently in the lower register.
It’s not a song you can master just by having a high voice, so if you’re confident in your lower range, definitely give it a try.
[Challenging Songs with a Wide Vocal Range] S-Rank Difficulty Challenge Songs (61–70)
Kaiju no Hanabuta (Monster’s Flower Song)Vaundy
Singer-songwriter Vaundy, who enjoys immense support from teens and people in their twenties, is a multi-talented artist who creates everything from catchy tunes to highly demanding pieces.
Among his works, the one I especially recommend for its exceptionally wide vocal range is Kaiju no Hanauta.
Its chorus features striking falsetto and makes extensive use of mixed (middle) voice.
While the chorus may become somewhat easier to sing if you use a non-breathy falsetto that doesn’t clamp the throat, it’s still very challenging—undoubtedly an S-rank song.
Biscuitchanmina
One of the most popular female rappers among teenage and twenty-something women right now is Chanmina.
Her eccentric fashion and the kind of straightforward rhymes only she can deliver are incredibly captivating.
Among her songs, one I recommend for its wide high-register range is Biscuit.
While the song isn’t particularly wide in range overall, it features a long, sustained mixed voice toward the end.
The track has few difficult spots, but those few are quite challenging.
If you can maintain vocal power while using mixed voice, definitely give it a try.
crimsonX JAPAN
When people are asked to name a song with a wide vocal range, many probably think of Kurenai.
This song is a masterpiece by X JAPAN, one of Japan’s most iconic visual kei rock bands.
The vocalist, Toshi, has a much higher voice compared to many other singers.
While a high voice alone doesn’t necessarily mean a wide range, Toshi can also produce solid low notes, and most of their songs span a broad range.
Even among them, Kurenai is exceptional.
It also requires mixed voice technique, so if you have a relatively high and wide vocal range, definitely give it a try.