Back Number’s Most Moving Songs and Popular Tracks Ranking [2026]

Until the day I can no longer rememberback number11rank/position

back number – Until the Day It Becomes Unrememberable (full)

A poignant ballad by back number that quietly sings of lingering feelings and a sense of loss for a former lover.

Released in October 2011 as their third single, the song is also included on the album “Superstar,” which came out the same month.

The lyrics portray the emptiness of days that keep going even after losing the most important person in the world, and the deep bond in which the two formed halves of each other.

Fear of memories of the other fading intertwines with the resignation that they will eventually be forgotten, and the realization that the time spent with the person was part of oneself wells up with aching tenderness.

A song that offers comfort to anyone who has lost someone dear.

blinkback number12rank/position

back number – “Mabataki” Music Video

This is a moving ballad by back number, a three-piece rock band from Gunma Prefecture.

Released in 2017 as their 17th single, it was chosen as the theme song for the film “The 8-Year Engagement.” The lyrics, which express the desire to stay with a precious person forever, are truly touching.

It’s especially recommended for middle schoolers who have someone they like.

expand_lessRaise the rankingexpand_morelower

Araki Jakkan

Report a problem

Old-fashionedback number13rank/position

back number – Old Fashion (full)

I bet many people are reminded of the drama when they hear this song.

It became a hit as the theme song for the drama “We Love: With You Who Forget Me,” starring Erika Toda and Tsuyoshi Muro.

The drama follows the life of a protagonist who develops early-onset Alzheimer’s disease, and I was moved to tears by how this song mirrors the characters’ heartbreaking emotions.

It’s a bittersweet track, but one that makes you feel like you can be kinder to someone when you listen to it.

expand_lessRaise the rankingexpand_morelower

utatane

Report a problem

Ritz partyback number14rank/position

Ritz Party

If you’ve been having a hard time meeting up with your best friend, I recommend “Ritz Party.” It’s a track included on back number’s album Superstar.

The lyrics, sung from the perspective of a man in a long-distance relationship, express a deep love for his partner.

However, since the lyrics never explicitly state that it’s about a romantic relationship, you can easily listen to it as if the partner were a friend.

Also, be sure to pay attention to the poignantly expressive vocals of Iyori Shimizu, the band’s lead singer.

expand_lessRaise the rankingexpand_morelower

yamamoto

Report a problem

Song of Those Who Supportback number15rank/position

Song of the Supporting Person / back number

It’s a memorable song that was sent to me when, after many things happened, I had to leave the place where I’d been.

Listening to it makes me feel happy.

It reminds me that, despite everything, there was someone who watched over me with care.

Winter and Springback number16rank/position

back number – Winter and Spring

In January 2024, back number released a song that richly portrays the aching pain of heartbreak and the hope beyond it.

The sorrow of a love that ended unexpectedly, despite the belief that one would be chosen, is delicately woven together with scenes of snow and spring.

The protagonist’s feelings—once dreaming of a fairy-tale happy ending—shift with the changing seasons.

This breakup story, told from a unique perspective, gently embraces a wistfulness that everyone has felt at least once.

Produced by Masanori Shimada, who worked on “Suiheisen,” and featuring Iyori Shimizu’s first attempt at directing the music video, it’s a tear-jerking spring song that quietly stays close to those trying to move past the pain of heartbreak.

The curtain risesback number17rank/position

back number – The Curtain Rises [Theme song for the film 'TOKYO MER: Mobile Emergency Room – Nankai Mission']

This is a sweeping, heart-stirring ballad by back number, chosen as the theme song for the theatrical release TOKYO MER: Mobile Emergency Room – Nankai Mission, coming out in August 2025.

Produced with Takeshi Kobayashi onboard, its sense of scale is breathtaking.

The song portrays the decisive moment when, despite being so overcome by fear that one trembles, one still resolves—out of a sense of duty—to head toward someone in need.

Lead actor Ryohei Suzuki has said this worldview gripped his heart; it truly feels like a scene from a film.

Listen to it when you’re facing a major challenge or need to steel yourself, and you’ll receive a warm yet powerful boost of encouragement.

Blue amberback number18rank/position

back number – Blue Amber [Theme song for the Kansai TV/Fuji TV Monday 10 p.m. drama 'From the Day I Took You']

A ballad that epitomizes back number, fully portraying deep sorrow and complex emotions.

Released in April 2025, this song served as the theme for the drama “From the Day You Were Taken,” aligning closely with its weighty narrative.

Like rare amber that changes color depending on the angle, the piece explores the multifaceted nature of the human heart.

Even when acting with firm resolve, another self is screaming inside—its wavering comes through with piercing clarity.

The grief of being torn apart by inescapable fate and the indelible memories of love are carried by a beautiful melody, drawing you in until you can’t help but empathize.

It’s a track you’ll want to hear on sleepless nights when you’re burdened with feelings you can’t tell anyone.

Happinessback number19rank/position

Happiness / back number (cover)

A song by back number whose poignant love theme captivates listeners and resonates with many.

The lyrics depict the story of a woman with a one-sided crush.

The man she longs for is likely her childhood friend or someone close to her.

However, he is in love with another woman, and the heroine is aware of it.

This song portrays a heartbreaking love story that could happen to anyone nearby.

Even if she isn’t the one chosen, her pure and beautiful wish for his happiness is sure to move your heart.

expand_lessRaise the rankingexpand_morelower

Hane Keisuke

Report a problem

From our joined handsback number20rank/position

back number – From the Hands We Held

It’s a song about breaking up with someone because of oneself.

I think a song that expresses regret after the breakup and gratitude toward an ex-girlfriend will really resonate with people who went through a breakup around this time.

The gentle vocals characteristic of back number also evoke a strong sense of empathy.