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[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!

[Challenging Songs with a Wide Vocal Range] S-Rank Difficulty Challenge Songs (91–100)

A world where the sun does not riseAimer

Aimer “A World Where the Sun Doesn’t Rise” Music Video (Theme song for Demon Slayer: Kimetsu no Yaiba – The Movie: Infinity Castle Arc, Chapter 1: The Return of Akaza)
A world where the sun does not riseAimer

This song, which is also the theme for “Demon Slayer: Kimetsu no Yaiba – Infinity Castle Arc: Chapter 1 Akaza’s Return,” spans roughly E3 to E5 and is quite advanced to sing on a first try.

When I first heard it, Aimer’s English-like diction made me think, “Is this a Western song?” but it’s firmly in Japanese (lol).

The A section is sung phrase by phrase in the lower register, but from around the B section it gradually becomes more emotional.

There are plenty of high notes, but rather than belting them in chest voice, using a strong head voice brings out both the poignancy and the power, matching the song’s mood.

From low to high notes, try singing with your eyebrows slightly raised to help stabilize pitch!

Mikan HeartC&K

C&K’s “Mikan Heart,” a duet by two male vocalists, is a song that’s hard to replicate in the original vibe.

What really stands out is the tone of CLIEVY, the member who handles the high notes.

His voice is almost feminine, and it seems quite difficult for most men to reproduce that quality.

Because so few people can produce that kind of tone, men who naturally have a light, thin voice should definitely give this song a try.

Also, splitting the parts between a man and a woman is a great idea!

Even if you wait for a miracleSaucy Dog

Saucy Dog “Even If We Were Waiting for a Miracle” Music Video (Theme song for the film “Love’s Terminal Illness”) <9th Mini Album “Curry Rice” to be released on 2025.12.17>
Even if you wait for a miracleSaucy Dog

Saucy Dog is a rock band wildly popular among young people.

Their signature feature is, without a doubt, vocalist Shinya Ishihara’s high-tone voice.

Their classic “Kiseki wo Mattetatte” is characterized by a dramatic melody centered on heartbreak.

The chorus sits extremely high, featuring frequent uses of mixed voice and falsetto.

In particular, the mixed voice passages appear at the most intense moments, so a certain degree of fullness and vocal power is required.

CarnivalMAZZEL

MAZZEL / Carnival -Music Video-
CarnivalMAZZEL

MAZZEL is one of Japan’s leading boy groups.

Their weapon is performances that rival the best of K-pop, and their catchy, stylish songs consistently rank high on the charts.

Among their work, the one I especially recommend is “Carnival.” This track is reminiscent of BTS and makes frequent use of high falsetto.

When singing it at karaoke, you’ll likely be performing it solo, so on top of the difficulty of the falsetto, you’ll probably also find breathing quite challenging.

Prismimase

imase’s new song “Prism.” Speaking of imase, he mainly uses a type of falsetto often found in funk music, and he’s known among contemporary artists for frequently hitting high notes.

In this track, his high register really explodes.

Notably, the range of his falsetto is broad—from a funky falsetto that feels like it’s caught on the upper palate to a more whisper-leaning falsetto—showcasing a wide variety of tones.

Highly recommended for those who want to focus on training their falsetto.

giftRADWIMPS

RADWIMPS – Gift [Official Music Video]
giftRADWIMPS

“Gift,” known as the theme song for NHK’s morning drama series “Anpan,” is a new track by RADWIMPS.

True to RADWIMPS’ style, it features a complex melodic development that incorporates a wide range of genres.

The overall vocal range is quite broad, and the chorus includes phrases that repeatedly switch between chest voice and falsetto.

Other sections also feature drastic pitch movement and key changes, making it highly challenging.

If you’re confident in your vocal abilities, be sure to check it out.

Like, dislikefantomu shiitaa

Phantom Theta “Like, Dislike” (OFFICIAL MUSIC VIDEO)
Like, dislikefantomu shiitaa

Phantom Theta is an idol group produced by the vocalist Ado.

While firmly retaining the essence of an idol group, some members boast high-level vocal skills, and the songs often have a distinctly dark worldbuilding, making them a remarkably distinctive group.

Their new song, “Suki, Kirai,” demands considerable vocal ability due to its wide range and the variety of vocal expressions it features.

It even includes a mellow vocal line reminiscent of Showa-era kayōkyoku, making it a track where there’s little room to bluff.