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A collection of timeless ballads sung by idols—songs that deeply touch the heart

When people think of idol songs, many might imagine bright, energetic tracks.

However, there are also many idol groups that sing beautiful ballads that truly touch the heart.

In this article, we’ll introduce a selection of wonderful ballad songs performed by idols.

We’ve chosen tracks that portray a variety of emotions and stories.

Be sure to read the lyrics as you listen, find your favorites, and take your time savoring their unique worlds.

Ballad songs sung by idols: A collection of moving masterpieces (21–30)

I/meSixTONES

SixTONES – Watashi [YouTube ver.] / Watashi [YouTube ver.]
I/meSixTONES

There are times when, the moment you notice your own feelings, your heart starts moving on its own and you’re left bewildered, aren’t there? This work by the popular group SixTONES is a ballad released in June 2022 as their seventh single.

It was used as an insert song for the drama “Why Would You Do Love Seriously?” starring member Hokuto Matsumura, and it recorded 471,000 copies in its first week on the Oricon Weekly Singles Chart.

Because of its deliberately sparse, minimal arrangement, the delicate breaths and contours of the six members’ words stand out vividly.

The chorus, which unfolds like an emotional dam bursting, is so dramatic it tightens your chest.

It’s a masterpiece also included on the album “Koe” (“Voice”), perfect for immersing yourself alone on a quiet night.

I want to become invisible.Number_i

A solo number by Shiyoh Hirano that drew major attention for being produced by singer-songwriter Vaundy.

Layering everyday scenes and changing skies, it delicately expresses the wish to melt into the presence of someone special, sung over a soothing band sound.

Included on the album “No.I,” released in September 2024, the track debuted at No.

1 on the Oricon Weekly Digital Singles chart and has been loved by many listeners.

Give it a listen when you feel a bit worn out by busy days or want to quietly reflect alone at night.

Hirano’s gentle vocals will softly stay by your side and calm an anxious heart.

I don’t need wings.AKB48

[MV full] Tsubasa wa Iranai / AKB48 [Official]
I don't need wings.AKB48

This work features a pleasantly nostalgic, folk-inspired melody.

Released as a single in June 2016, it marked Mion Mukaichi’s first time as center.

The warm lyrics—telling you it’s okay not to rush, that even without wings you can keep walking firmly on the ground—really resonate.

The music video, crafted with a worldview reminiscent of the student movements of the 1970s, also drew attention, and the song is known as the theme for the Amazon Prime Video drama “AKB48 Sousenkyo Scandal: Akiba Document.” With the acoustic guitar tones layered with the members’ gentle chorus, it’s a track packed with a timeless charm that transcends generations.

Its relaxed tempo and comfortable range make it easy to sing, so it’s also a great pick when you want to raise your voices together and have fun at karaoke.

Mermaid in FebruaryAKB48

This AKB48 song paints a romantic scene that makes you want to head to the chilly seaside in lingering-February cold.

It’s memorable for lyrics that liken carefree frolicking by the winter ocean to a mermaid, turning even the cold spray of the waves into shared memories.

Performed as a unit song with Azuki Yagi on vocals at a theater show in December 2024, it was later included on the album “AKB48 ~studio recordings collection~ AKB48 18th Stage ‘Koko Kara da,’” released in December 2025.

This work is a bittersweet love song that captures feelings of affection so strong they make even selfish behavior seem adorable.

It’s the perfect track for gazing out at the quiet winter sea and sinking into a sentimental mood.

Dear,Snow Man

Snow Man is an idol group whose members shine across a wide range of platforms, including TV, dramas, and stage productions.

One of the new songs included on their best-of album THE BEST 2020‑2025, released in January 2025, is this track.

Marking the fifth anniversary of their debut, it’s a medium-tempo ballad themed around gratitude and the bond with the fans who have supported them.

The gentle harmonies of the nine voices layering over a warm, piano-and-strings ensemble leave a lasting impression.

The lyrics are filled with countless expressions of thanks for love, quietly resonating in the listener’s heart.

This piece is perfect for graduations and send-off moments, for those who wish to express their appreciation to friends and mentors.

It’s a warmly comforting number that softly encourages those embarking on a new journey.

It smelled like shampoo.22/7

22/7 2nd single “It Smelled Like Shampoo” music video
It smelled like shampoo.22/7

A 2nd single by 22/7 that portrays a secret longing for an upperclassman at an all-girls school.

Released in April 2018, the song delicately weaves the feelings of a faint, bittersweet crush.

It tells of parting with a senior who is leaving the club, the image of a white blouse turning translucent in backlight, and a gently drifting scent.

While carrying a love that can’t be told to anyone, the story unfolds up to the moment the senior embraces her, tightening the chest with every scene.

This work leaves the ache of an unfulfilled first love, yet also a lingering sense of solace.

It’s a song that quietly stands by those who cannot confide their feelings for someone of the same gender.

I’m totally in love.CANDY TUNE

[LIVE Footage] CANDY TUNE “I’m in L♡ve” CANDY TUNE JAPAN TOUR 2025 – AUTUMN – “TUNE QUEST”
I'm totally in love.CANDY TUNE

A pop-rock tune packed with sweet, melting feelings of love and a slightly thrilling, heart-pounding excitement.

It’s included on the album “Double Double FIGHT!” released in October 2025 by Harajuku-born idol group CANDY TUNE.

The song has been performed on their nationwide tour and on TBS’s “CDTV Live! Live!”, and is beloved as a crowd-pleasing staple that unites fans.

It’s perfect when you want to make a move on someone you like or express the fun of love with all your might.

In the chorus, try singing as if you’re delivering overflowing love while imitating the cute choreography!