back number Popular Song Ranking [2026]

Heroineback number36rank/position

back number – Heroine (full)

This commercial conveys the refreshing taste of Tanrei Green Label through a unique world: a jukebox set in nature.

When Mikako Tabe discovers the jukebox and presses the “Snow” button, the gentle singing voice of Iyori Shimizu from back number begins to play.

Even the depiction of light emerging within the calm natural setting evokes a relaxed atmosphere.

The song performed in this gentle ambiance is back number’s “Heroine.” It’s a ballad that unfolds with a soft band sound, and the soaring vocals layered on top convey an uplifting, positive mood.

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Bubbles and Sheepback number37rank/position

Awato Hitsuji

This heartwarming song portrays a protagonist who, after repeated failures in love and everyday life, gradually learns to accept themselves as they are.

Shifting from serious lyrics to a fresh, spring-like melody and the warm tones characteristic of back number, it gently conveys an uplifting message.

Released on the May 2015 single “SISTER” and included on the December 2015 album “Chandelier,” the track also became well-known as the tie-in song for the men’s shampoo “SUNSTAR TONIC.” With its relatable message and comfortable vocal range, it’s an easy choice to try at karaoke.

Emeraldback number38rank/position

back number – Emerald

It’s a digital-only single released on October 12, 2020, and it’s the theme song for the drama “Dangerous Venus.” “Emerald” emphasizes expressive power, blending delicate romantic feelings with a dark elegance.

It’s recommended for men who want to refine their control of range, emotion, and rhythm.

Another key point is how beautifully you can sing the ad-libs when the melody shifts.

The vocal range is D#3 to B4, which feels relatively restrained for back number.

It’s tough to sing unless you can switch smoothly from chest voice to falsetto, and since the key modulates upward in the last chorus, you’ll likely project better if you use more breath and sing with raw emotion.

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Kubota Mami

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my nameback number39rank/position

back number – My Name (full)

This is a gem of a medium-tempo ballad that portrays a profound form of love in which hearts connect simply by calling each other’s names.

Set to the gentle melodies woven by back number, it warmly sings of gratitude and devoted feelings toward someone precious.

Meeting someone who accepts your weaknesses and wounds, and the desire to give them everything—these emotions make for a bittersweet yet heartwarming song that leaves a deep impression.

Released as a single in May 2016 and included on the album “Encore,” this track was written as the theme song for the film “Wolf Girl and Black Prince.” It reached No.

6 on the Oricon Weekly Singles Chart and earned Gold Disc certification, becoming a popular hit.

It’s a heartwarming love song you’ll want to listen to while thinking of someone important to you, recommended for moments when you want to renew your gratitude for irreplaceable people—be they a partner, a friend, or family.

Sing of springback number40rank/position

Sing of spring

A gem-like ballad that depicts a heartrending farewell against a springtime backdrop.

Its delicate imagery intertwines beautifully with the protagonist’s emotions, unable to fully accept the parting.

Featured on back number’s February 2009 mini-album “Nogashita Sakana,” the song’s simple, acoustic guitar–driven arrangement and poignant melody sink deep into the heart.

It’s a track meant to be heard as a gentle anthem of encouragement for those who, while carrying the pain and loneliness of heartbreak, still try to look forward.

Size of the kaijuback number41rank/position

back number – The Size of the Monster

Back Number’s digital-only single “Kaijū no Size” captures listeners’ hearts with a refreshingly light melody while portraying complex emotions.

When one is burdened with difficult romantic feelings due to their circumstances, the song expresses those raging emotions through the unique metaphor of a “monster.” The song’s message—the vastness of a loving heart and its aching sadness—will surely resonate with and support students struggling with love.

It’s a quintessential Back Number piece that colors the carefully maturing feelings within the limited time they have.

Song of Those Who Supportback number42rank/position

Sasaeru Hitono Uta

Set to a gentle, comforting melody, this warm, heartfelt song portrays a parent’s unconditional love.

The straightforward feelings of a parent for their child are written like an everyday conversation, and the tender lyrics strike a chord.

Included on the album “blues,” released in November 2012, this piece is a gem of a ballad crafted by back number after their major-label debut.

Though it has no tie-in, it has won broad support from fans as a song that resonates deeply when you want to reflect on the bond between parent and child, think of someone dear, or remember family living far away.