back number Popular Song Ranking [2026]

bouquetback number1rank/position

back number – Bouquet (Short ver.)

It’s a love song that really hits home, capturing those ordinary, unremarkable moments that wouldn’t stand out in conversation.

We don’t know what the future holds, but right now we just want to be together—those feelings are woven into the song, and it always brings a smile to my face.

Released in June 2011 as the second single, it was featured in a Dinos TV commercial and became a hot topic.

It’s a great choice for wedding celebrations or anniversaries.

The chorus in particular feels like a vow, making it perfect for moments of celebration!

Happinessback number2rank/position

Shiawase

A back number ballad that tightens your chest with overwhelming poignancy.

It delicately depicts the pain of unrequited love, where the closeness of being right next to someone only makes them feel farther away.

Knowing there’s someone else in their heart, you still force a smile—some listeners may find themselves in tears at that image.

Included on the single “Hanabira,” released in April 2011, and later featured on the October album “Superstar,” this song offers gentle, beautiful tones to those burdened with feelings they can’t express or hearts troubled by unattainable love.

Why not listen to it on a night when you just want to cry your heart out?

HAPPY BIRTHDAYback number3rank/position

back number – HAPPY BIRTHDAY (full)

This song is by back number, a rock band known for releasing many classic bittersweet love songs.

It was released in 2019 as their 20th single and served as the theme song for the drama A Story to Read When You First Fall in Love.

While the title might make you think it’s a celebratory track, it’s actually a poignant number depicting a man spending his birthday alone, nursing an unrequited love.

It tenderly conveys the aching feeling of waiting to hear “happy birthday” from the person he likes.

Rather than a song to give to someone else, it feels like a track that gently stays by the side of your lovesick self.

Ms. Hanako on a high pedestalback number4rank/position

back number – Takane no Hanako-san (full)

Released on June 26, 2013, this is their eighth single and a signature summer tune.

It features a refreshing melody and lyrics that depict a bittersweet unrequited love mixed with daydreams.

It’s a massive hit that has surpassed 300 million streams.

Naturally, back number is very popular among men, and many say they want to be able to sing their songs.

Among them, “Takane no Hanako-san” is recommended because its up-tempo beat makes it easy to sing with good rhythm, making it great for practicing powerful projection and developing a sense of rhythm.

If you focus on explosiveness, hitting the high notes becomes easier, so go ahead and sing out with all your might.

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Kubota Mami

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horizonback number5rank/position

back number – Horizon

A gem of a track by back number that gently stays close to your heart whenever you hit a wall in life.

Even amid the despair that feels like your dreams and hopes are collapsing, the lyrics portray the journey of looking inward and eventually finding light—sure to move you deeply.

This song is also known for being created in August 2020 for high school students after the Inter-High Championships were canceled due to the COVID-19 pandemic.

While affirming frustration and sorrow, it gives a sense of the view that awaits beyond overcoming them.

As you step into a new world at graduation, you may feel anxiety or loneliness.

In those moments, this song will wrap your pain in its embrace and give you the quiet courage to take that first step.

Happy Endingback number6rank/position

back number – Happy End (full)

A ballad that portrays the heartrending feeling of trying to force a smile while hiding the sorrow of parting.

It vividly depicts the protagonist’s struggle, unable to fully accept the breakup and cut off lingering feelings for their former partner.

Their attempt to act tough and pretend there’s a happy ending is so poignant it brings tears to your eyes.

Released in November 2016 as their 16th single, this song was written as the theme for the film “My Tomorrow, Your Yesterday,” which premiered in December of the same year.

It’s one of back number’s signature tracks, also included on the album “Encore.” Why not listen to it on a night when you want to let your emotions flow and cry your heart out to feel refreshed?

Christmas songback number7rank/position

back number – Christmas Song (full)

Amid the glitter of a winter city, a bittersweet heart can’t help but dwell on the one it longs to see.

This gem of a love song by back number captures the frustration of unrequited feelings.

The title is straightforward, yet it’s striking how it spotlights the depth of emotion for the other person.

Released in November 2015 as their 14th single, it became widely known as the theme song for the Fuji TV drama “5→9: From Five to Nine.” The protagonist struggles to be honest, but ultimately becomes certain of their love for that special someone.

When you need the courage to confess, this song is sure to give you strength.

loveback number8rank/position

back number – Koi (full)

This is a song by the rock band back number, loved for its heartrending, relatable lyrics and friendly, expansive melody lines.

The lyrics reflect the bittersweet feeling of the end of student life and a straightforward, hidden affection.

Even with low self-esteem, you can’t help looking for the one you like… it’s the kind of content that makes your heart skip a beat.

Released in March 2012, the song was used as the ending theme for TV Asahi’s “Music-ru TV” that same month, and it’s also included on the classic album “blues.” If you sing it at karaoke, even a man who doesn’t usually voice his feelings might be able to subtly convey them to the woman he likes.

fishback number9rank/position

back number – fish

Back Number’s “fish” is a masterpiece that poignantly and beautifully sings about the pain of a heartbreak that feels like it might break your spirit.

Written from a woman’s perspective, the lyrics trace lingering attachment to a lost love, cutting straight to the heart.

It’s as if it symbolizes how we become adults each time we say goodbye.

Take your time savoring the feelings that sway between regret and sorrow, accompanied by a soothing ballad sound.

Even if I forget somedayback number10rank/position

Even if I forget someday

A cityscape changing with the passage of time, and the unforgettable feelings that remain in the heart.

It’s back number’s song that gently embraces such bittersweet emotions.

Included on their first album “Ato no Matsuri,” released in June 2010, this track is distinguished by Iyori Shimizu’s delicate lyrics and a melody that sinks deep into the soul.

Memories with someone important may one day fade away.

Even so, it conveys the desire to cherish each and every moment.

For those whose heartbreak has yet to heal, this is a song that quietly stays by your side.

Why not surrender yourself to it while holding close the feelings you keep in your heart?