back number Popular Song Ranking [2026]

bouquetback number1rank/position

back number – Bouquet (full)

This is a signature early masterpiece by back number that vividly captures the ache of unrequited love and has earned passionate support from Gen Z.

Released in June 2011 as their second single, it was selected as the ending theme for TBS’s “COUNT DOWN TV.” Also included on the album “Superstar,” the song, told through the casual conversations of a couple, conveys a down-to-earth desire to cherish the time spent together now rather than an uncertain future—something that resonates deeply with listeners.

Its warmth comes not from grand words but from savoring everyday happiness, making it a perfect fit for an unpretentious wedding profile video or as background music for relaxed conversations with guests.

Happinessback number2rank/position

Shiawase

Back number, known for lyrics and melodies that ache and tighten the chest, has won wide support.

This work is the B-side track included on their major-label debut single “Hanabira,” released in April 2011.

It was later included on the album “Superstar,” released in October of the same year, and has continued to be cherished by fans as a hidden gem.

Realizing that the person you love is thinking of someone other than you, yet being able to stay by their side only by wishing for their happiness—these painfully selfless feelings and inner conflicts are depicted in the lyrics, piercing listeners’ hearts.

The beautiful arrangement incorporating strings further stirs the emotions.

For those suffering from unrequited love or who have once prayed for a loved one’s happiness from afar, this is a song that will bring you to tears.

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)

Among back number’s songs, the massive hit is “Takane no Hanako-san.” The overall vocal range spans E3 to D5, which is fairly wide, but the melody is clearly divided into sections with distinct ranges, making it easier to switch between parts while singing.

Also, the tempo is surprisingly fast, so it’s best to lean forward a bit and sing proactively so you don’t get left behind.

In particular, the latter half has many sections where you’re singing continuously, so the key is to use your body to keep a steady rhythm as you sing.

In the quieter chorus section in the middle, using a gentle tone will let your voice carry and make it easier to sing.

expand_lessRaise the rankingexpand_morelower

Kubota Mami

Report a problem

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” Music Video

This is back number’s 16th single, chosen as the theme song for the film “My Tomorrow, Your Yesterday.” It beautifully conveys the contradictory feeling of deeply loving someone even while saying goodbye, carried by a delicate band sound.

The lyrics portray a brave facade masking a heart crushed by lingering attachment and inner conflict, gripping listeners tightly.

The situation that forces a sad lie, contrary to the title, is enough to bring tears to your eyes.

Released in November 2016, the song was also included on the best-of album “Encore” and remains steadily popular.

It’s a standout ballad that gently stays by your side on tearful nights, resonating with anyone who sees their own awkward, tough exterior reflected in it.

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.