back number Popular Song Ranking [2026]

Secret Kissback number92rank/position

Secret Kiss

A song by back number that opens the album “Humor,” released in January 2023.

It gently portrays the hidden feelings of two people in love, accompanied by emotional tones.

The lyrics, where bittersweetness and tenderness intertwine, are moving, drawing you into back number’s characteristically delicate emotional expression.

The words crafted by Iyori Shimizu conjure vivid scenes as if from a movie.

It’s perfect not only for those newly in love, but also for moments when you want to look back on memories with someone dear.

A track that leaves you wrapped in a warm afterglow that seeps into the heart.

Liarback number93rank/position

Liar

It’s the tenth track on their 14th album, Chandelier, released on December 9, 2015, and it’s a song themed around human relationships.

It conveys a dilemma: telling lies to make life more comfortable, and wondering whether friends will reach out when it really matters.

bird’s sorrowback number94rank/position

Bird’s Sorrow

A rock tune that kicks off with a drum beat after a burst of guitar feedback.

It’s featured on the album “blues” and really shines live.

The lyric “Our repeating everyday and this once-in-a-lifetime special today flow quietly on under the same sky” is particularly striking.

one roomback number95rank/position

One Room

The back number classic “one room,” with its strikingly orthodox J-pop rock melody, leaves a strong impression.

Since it was released early in their career, the youthful quality of vocalist Iyori Shimizu’s voice also stands out.

The most singable aspect of this song is, above all, its chord progression.

Because it uses chords frequently heard in Japanese pop, every part makes it easy to find the pitch.

In addition, the vocal range is narrow, so even those who can’t hit high notes should be able to sing it without issue.

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reunionback number96rank/position

Reunion

Released in December 2016, this song is a lavish collaboration.

Produced by Takeshi Kobayashi, it features Motohiro Hata and back number performing together, singing about emotions that sway in the city and the theme of “reunion” that arrives in fleeting moments.

The contrast between Iyori Shimizu’s and Motohiro Hata’s voices is wonderful, evoking warmth within the bittersweetness.

It was used as the CM song for Tokyo Metro’s “Find my Tokyo.” campaign starring Satomi Ishihara, so many listeners will likely recognize it.

In addition, the limited first edition B of the best album “Encore” includes a short film based on this work.

It’s a track you’ll want to listen to quietly when you wish to remember something important amid busy days.

If it is a dreamback number97rank/position

Yumenanodeareba

Included on back number’s 17th single “Mabataki,” released on December 20, 2017.

Have you ever realized, while you were asleep, “Oh, I’m dreaming right now”? This song is exactly about that situation.

The protagonist realizes he’s dreaming about the girl he likes and thinks, “If this is a dream, then…”—this and that.

A cute daydream song about a boy in love.

golden hourback number98rank/position

Golden Hour

Despite its glittering title, this track stands out with a hefty rock sound and distorted guitars.

It embodies the band’s resolve to keep stepping onto the stage without settling for the status quo.

The song is included on their seventh album, “Humor,” released in January 2023.

While it doesn’t have a specific tie-in, it was written late in the album’s production and plays a key role in threading a backbone through the whole work.

Shimizu Iyori’s lyrics—confronting the struggles behind flashy success and calmly assessing where they stand now—are sure to strike listeners to the core.

It will powerfully push the backs of working adults fighting day by day and those trying to take on new challenges.

It’s a number with overwhelming intensity that makes you want to experience it live.