Karaoke songs you can enjoy singing in your natural voice without changing the key

Mutual loveNEW!aiko

aiko - “Mutual Love” music video

Aiko often has songs that span a wide range from low to high notes.

In the new song “Sōshi Sōai,” the key range looks wide at G#3–C#5, but the actual sung range is lower than you might expect.

The B4 range is used in the chorus and elsewhere, but for most women, that pitch should come out naturally without much effort.

Rather than a “cheerful!” vibe, it’s a song that strongly conveys “bittersweet emotion,” so it’s one you can sing with a calm tone.

When you actually try singing it, you may find many phrases where the pitch drops at the end of the melody lines, which can make intonation tricky for some.

It’s true that moving from low to high can be easier if you have momentum, but going from high to low is very difficult to land accurately.

Try singing lightly while sustaining your breath all the way to the end.

Tomorrow as wellNEW!SHISHAMO

SHISHAMO “Tomorrow Too”

This is a song released in 2017 that was used in an NTT Docomo commercial.

The intro through to the lead-up to the chorus might not ring a bell at all, but once the chorus hits, most people will probably think, “I’ve heard this!” The overall vocal range is G3–D5, so most women should be able to sing it without changing the key.

Also, since it features a band × brass band arrangement, the song has a very light, upbeat feel that makes it easy to get into the rhythm! I think it would be plenty of fun and a real crowd-pleaser at karaoke, too.

That said, the chorus is longer than you might expect, so you’ll need some stamina, and there’s a risk it could start to feel repetitive.

It might be good to split the chorus into two big parts—front half and back half—so you can add contrast and keep things engaging!

ORIONNEW!Mika Nakashima

Mika Nakashima 'ORION' Music Video

Because the song starts with the chorus and then clearly builds through Verse A → Verse B → Chorus, it’s very easy to sing.

There also aren’t many lyrics, so it’s a song where you can deliver each line carefully.

When you try singing Verse A lower than you expect, many people will likely feel, “Wow, that’s low.” To avoid a muffled sound, be careful not to overuse your throat.

In everyday conversation we actually talk using our throats, and if you sing with that same sensation, your voice will become throaty and muffled.

You need to lift your facial muscles and focus on engaging the vocal cords; if you project your voice just a little toward a distant point, your vocal cords will resonate! Once your voice starts to carry, it becomes easier to sing, so definitely give it a try.

rainbow-coloredNEW!Ayaka

Ayaka / Rainbow-Colored

“Nijiiro” was sung by many people in vocal training as well.

Of course, many also chose “Mikazuki,” but “Nijiiro” was especially popular because people said, “I can sing it without straining!” Indeed, during lessons, everyone seemed to relax well and found it easy to sing.

The overall range is F#3 to D5, which looks wide if you only consider the range, but since F#4 is used the most, there’s no need to be overly tense.

Also, for the flowing melody in the pre-chorus, if you don’t articulate every word too clearly and just go with the flow, you can avoid getting stuck.

For the last part of the chorus, if you sing each note carefully, it feels good and helps you stay on pitch.

There are points to focus on for each section of the melody, but you’ll likely find it easy to sing—so definitely try learning it.

PolyrhythmNEW!Perfume

[Official Music Video] Perfume “Polyrhythm”

Perfume’s breakthrough song released in 2007—some of you might have felt it sparked an entirely new genre.

They also announced a hiatus for 2025.

Polyrhythm doesn’t require a wide vocal range, so I personally hope those of you reading this will give it a try.

The song should be sung lightly over its brisk beat.

Clearly enunciating each word will help bring out the right vibe, but if you sing standing rigidly still, your mouth can tense up, making high notes harder and causing overall stiffness.

It’s important to get your whole body into the groove! Use your knees to move with the rhythm, and have fun singing.

My WishNEW!AI

AI「my wish」（Official Music Video）

This is a ballad themed around “wishes” and “prayers,” and it serves as the image song for the film Hanamanma, released during Golden Week in 2025.

The overall key isn’t high, so it’s easy for women to sing in the original key.

Around the final chorus, the singing style shifts with a melody-like arrangement, so please practice that part by listening to the song multiple times.

You’ll likely feel very refreshed when you can sing it well! Also, since the tempo is slow, the pauses are very important.

You can breathe sufficiently, so if you place each phrase carefully without rushing, the tempo won’t run.

It feels great to sing when you immerse yourself in the song’s world, so cherish the lyrics as you sing.

Tokimeki DiaryNEW!Dream Ami

Tokimeki Diary

Released for streaming in September 2025, it reportedly samples and uses the memorable chorus lyrics and melody from E-girls’ classic “Anniversary,” and is crafted with themes of “nostalgia” and “the connection between past, present, and future.” It’s a must-listen for fans! It’s sung mostly in a head voice, so it’s a bit high, but the range isn’t very wide, making it a good pick for those comfortable with higher notes.

The tempo isn’t fast, which is nice because you can take a breath at each phrase and sing calmly.

The ad-lib at the beginning uses easily pronounced words, so if you project your voice well there, it should help you keep singing comfortably throughout!