Kazuhiro Hirai’s songs that are easy to sing. Songs I want to sing with emotion.
Ken Hirai, known for his sweet, rich vocals, has delivered numerous classic songs.
From Hitomi wo Tojite to POP STAR and the drama theme Itsuka Hanareru Hi ga Kitemo, many people probably want to try singing them at karaoke.
However, we often hear that his distinctive vibrato and wide vocal range can feel intimidating and hard to tackle.
In this article, we’ve picked out relatively easy-to-sing songs from Ken Hirai’s catalog and introduce them while touching on their vocal ranges and melodic characteristics.
Use this as a reference when choosing your next song!
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Ken Hirai's easy-to-sing songs. Songs you want to sing emotionally (1–10)
sentimentalHirai Ken
Written and composed by Ken Hirai himself, this ballad captures the tenderness felt at the moment of parting and the poignant ache of a heart drifting away, and it was also used as the image song for the 25th Toyota Cup.
Because it is sung quietly throughout with only piano accompaniment, the delicacy of the vocals stands out.
It’s not a belting style, so I think it’s best to keep the resonance placed in the head consistently as you sing.
If you, like Ken Hirai, consciously lift your eyebrows firmly and aim a thin, straight-upward tone, it should make it easier even for those who struggle with falsetto.
Ken Hirai does this unconsciously too, so try singing while imitating the way he sings.
Nevertheless, I want to do it.Hirai Ken
A double A-side single that portrays a thrilling, forbidden love where you want to make your crush turn around and notice you.
The music video—shot entirely in Delhi, India—features Ken Hirai dressed as an Indian man, showing off Bollywood dance moves, which became a major talking point.
Viewers have even said it “doesn’t feel out of place.” The lyrics are distinctive, making it a song you can recognize right away.
I think the key is how emotionally you sing the opening of the chorus.
The vocal range isn’t that high, so you might be able to sing it in chest voice.
Once you’re feeling it, belting it out in chest voice instead of falsetto can feel really good.
Make my heartHirai Ken
This is the theme song for Doraemon the Movie: Nobita’s Great Adventure in the Antarctic Kachi Kochi, released on March 1, 2017.
It was her first anime theme song, written to evoke the bond between Doraemon and Nobita—a touching medium ballad that resonates with the heart.
The accompaniment is piano throughout, and if you sing without rushing, the tempo shouldn’t run.
Since it’s basically sung gently, lightly resonating in the nose and head as if you were humming will suit the atmosphere perfectly.
When humming, use plenty of breath as if you’re humming a tune.
Be careful not to produce the sound in your throat, as that will turn into a throaty voice.
Kenshi Hirai’s easy-to-sing songs. Emotionally expressive songs (11–20)
Love Love LoveHirai Ken
It’s a song that starts a cappella and incorporates handclaps and gospel-style choruses, singing about love in a fresh and emotionally rich way.
It’s used as the ending theme for the TBS show “Ai no Hinadan.” The track itself features a simple arrangement with piano accompaniment.
Falsetto works well, but belting in a chest-voice style can also sound great.
Just be careful not to strain your throat by pushing too hard.
Using gestures and engaging your whole body while singing can help you stay relaxed, so have fun and sing your heart out.
RingHirai Ken
It’s the theme song for the NTV Wednesday drama “Psycho Doctor,” and Ken Hirai commented that he created it with the thought, “Maybe everyone is hurting in some way.
Rather than running away from those emotional wounds, it’s important to take your time and love them.” It’s a touching ballad that many people say has saved them.
The tempo is relaxed, making it easy to sing calmly, which is a nice point.
It may not be a very famous song, but the melody line is simple, so I think it’s easy to remember.
There’s a key change before the last chorus that raises the vocal range, so be careful with that part.
Even if the day comes when we partHirai Ken
Precisely because we love, our hearts ache at the thought that a farewell will someday come.
Someday We’ll Have to Part, which captures that feeling, was released in 2008 and was chosen as the theme song for the film I Remember the Sky.
Its lyrics remind us that even happy days will one day end, which is why we should cherish the present and love the people we care about with all our hearts.
With its gentle melody and a range that isn’t too wide, it’s easy to sing.
Try singing it while thinking of someone precious to you.
Close your eyesHirai Ken
“Close Your Eyes” is a song that expresses the determination to overcome a painful farewell while feeling the lingering presence of a loved one.
Released in 2004, it was used as the theme song for the film “Crying Out Love, in the Center of the World” and became a massive hit alongside the movie.
Although its wide vocal range makes it a challenging piece, its high recognition is a major reason it’s an easy pick for karaoke.
The tempo is gentle, so try singing it in a key that suits your voice.
It has been covered by many artists, regardless of gender—such as Akira Fuse and Ayaka—so you might also want to check out the cover versions for reference!