Karaoke Popular Songs Ranking of back number [2025]

Size of the kaijuback number22rank/position

back number – The Size of the Monster

Back Number’s “Kaijū no Size” is a song that really shines for male singers at karaoke.

Its emotionally charged lyrics resonate with listeners.

The key is on the higher side, but with proper adjustment it becomes easier to sing, making it approachable even for beginners.

Also, switching between falsetto and chest voice is great practice for improving your vocal skills, and if you ride the uptempo beat and sing it out, you’re sure to grab attention at karaoke.

Seize the chance to show off the results of your hard practice with this song.

Important thingsback number23rank/position

Daijinakoto

A warm ballad that gently depicts the misunderstandings, conflicts, and the importance of trust between lovers.

The relationship—born of strong feelings for the other person—that can bring about anxiety, hesitation, and sometimes arguments is portrayed from a down-to-earth perspective.

Released as a coupling track to the single “Hanataba” in June 2011, it was also chosen as the ending theme for NHK’s documentary program “Mirai e no Tobira.” With its calm melody line, this song is considered relatively easy to sing among back number’s tracks.

Because it invites heartfelt singing even at karaoke, it’s a perfect choice when you want to think of your partner or someone dear to you and convey your honest feelings.

blinkback number24rank/position

back number – Mabataki (full)

The 17th single “Mabataki,” chosen as the theme song for the film “The 8-Year Engagement,” carries a love-filled message that resonates with the movie’s story and is sure to move you.

Its friendly, shuffle-beat melody makes it easy to remember, and since the overall vocal range isn’t wide, it’s easy to sing.

However, if you’re not comfortable with the bouncy rhythm, be sure to listen closely to the karaoke track as you sing.

Although the range is narrow, the key is relatively high, so if it feels difficult, consider trying it in a key that suits your voice.

Velvet Poemback number25rank/position

Velvet Poem

Back Number’s classic song “Velvet no Uta” (“Velvet Poem”).

Released in 2022, it became well-loved as the theme song for the film Akira and Akira.

The track is crafted as a straightforward, traditional ballad.

While Back Number’s songs often feature a lot of long sustained notes, this one is relatively restrained in that regard, making it comfortable to sing even for those who struggle with breath control.

The chorus includes some slightly higher phrases, but because the melody rises in a gentle, upward-tilting manner, it should be easy to keep your pitch on target.

Bubbles and Sheepback number26rank/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.

Blue amberback number27rank/position

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

There are actually many people who say, “I want to sing back number songs because there are so many good ones, but they’re too high for me…” In that case, how about “Blue Amber,” released in 2025? It’s not an upbeat song, but if you like back number, you’ll surely be drawn to its emotional vibe.

The overall vocal range is C3 to B4, which is quite narrow for back number.

That said, there are a lot of switches between chest voice and falsetto.

You don’t need to imitate the singing style perfectly—just focus on which voice feels the best for you to sing with!

Sing of springback number28rank/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.