A song themed around letters. A popular letter song.
Compared to the past, we write and receive letters far less often nowadays.
Still, letters have their own charm, and I think they’re a wonderful way to convey your feelings.
Precisely because of the times we live in, there may be many things that come across better in a letter.
This time, I’ll be introducing songs with the theme of “letters.”
There are many kinds of letters—thank-you notes, love letters, letters to your future self—so there are all sorts of “letter songs.”
Just hearing the word “letter” makes it feel like something filled with heartfelt emotions, doesn’t it?
Since there are letter songs for many different situations, I hope you’ll find a favorite.
- Popular love-letter songs that deliver your feelings. Timeless classics that touch the heart.
- [Tearjerker] Songs that make your heart tremble with tears & moving tracks with lyrics that touch the soul
- Masterpieces that sing of love. Recommended popular songs.
- [Song of Gratitude] Timeless classics and the latest tracks that convey heartfelt “thank you” to your seniors
- A classic song that sings of gratitude to one’s parents. Thank you, Dad and Mom!
- Tear-jerking inspirational songs: recommended masterpieces and popular tracks
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- [Must read] Songs with great lyrics. Moving songs you’ll want to listen to while reading the lyrics
- Songs with strong messages. Classic J-Pop masterpieces and recommended popular tracks.
- Masterpieces with the theme of “tears.” A roundup of moving tracks that tug at the heartstrings.
- [J-Pop] A Collection of Unrequited Love Songs That Stay Close to Your Heart
Songs themed around letters. Popular letter songs (11–20)
Letter to my parentsGReeeeN

A heartwarming song that expresses gratitude to one’s parents.
It was included on the album “Ii ne! (´・ω・`)☆,” released in June 2013, and was also used as a commercial song for Sompo Japan and Nipponkoa Insurance.
True to GReeeeN’s style, it features straightforward lyrics and a catchy melody, resonating with many listeners.
The track is also popular as background music for reading letters to parents and presenting bouquets at weddings, making it perfect for those precious moments when newlyweds convey their thanks to their parents.
It’s a song we highly recommend to anyone who wants to express gratitude to their parents or reaffirm family bonds.
Love letterTHE BLUE HEARTS

This is a song that expresses a bittersweet feeling with letters as its theme.
Released in February 1989 as THE BLUE HEARTS’ fourth single, it’s one of the tracks included on the album TRAIN-TRAIN.
Written and composed by Hiroto Kōmoto, this ballad is characterized by its effective use of falsetto chorus and strings.
In 2004, it was featured in a KDDI (au) commercial, and in 2006 it was used as an insert song in the film Love Letter: Aoi Renga.
Singing of lingering feelings for an unfulfilled love and a pure wish for the other person’s happiness, this song is recommended for those who want to entrust their feelings for someone special to a letter.
Love LetterGReeeeN

This song is themed around a heartwarming love letter.
Released in November 2011, it was used as the opening theme for a TV Tokyo music program.
Since the members of GReeeeN have pursued music while working as dentists, the lyrics convey a sense of cherishing the small, everyday moments.
Filled with deep affection and gratitude toward a loved one, the words are relatable to anyone.
It’s a track you’ll want to listen to when you want to express your feelings to someone special or on an anniversary with your partner.
Be sure to listen to it together with someone important to you.
Letter replyAqua Timez

It was released in 2014 as Aqua Timez’s third digital-only single.
The song was created from the desire to reply to the fan letters they had received, and it is said that the vocalist, Futoshi, bared all of his own weaknesses and vulnerabilities in making it.
The lyrics overflow with the inner turmoil, setbacks, and worries—the unstable feelings that many young people carry—so I imagine many listeners can relate.
It’s a song that resonates with the heart.
LetterMr.Children

A song that reflects on feelings toward a past lover is included on Mr.Children’s album “Shinkai” (Deep Sea).
Centered on emotions after heartbreak and looking back on days gone by, it has become a classic that resonates with many listeners.
Released in June 1996, this work is regarded as a track that symbolizes the album’s overarching theme: “parting as the destination of love.” Its gentle melody and emotionally rich vocals are sure to leave a deep impression on listeners.
It’s the perfect song for those who have experienced a breakup or want to reminisce about someone special.
Be sure to listen to it slowly on a quiet night.
LettersUtada Hikaru

A song by Hikaru Utada expressing her feelings for her mother, Keiko Fuji, who used to leave her notes before going to work when she was a child.
It was used as a commercial song for NTT DoCoMo’s FOMA featuring Utada herself.
The guitar was performed by Char and HISASHI from GLAY.
Songs with a letter motif. Popular letter songs (21–30)
Love letterAMUGIRI

AMUGIRI, who is also active as a member of the YouTuber group Comdot, delivers a witty track released as his second digital single in May 2024—one that boldly reframes harsh criticism as a heartfelt letter.
He performed it at the Tokyo Dome event in August 2024, captivating the audience with confident rap.
The song is slated for inclusion on the album “I AM ~ kick the verse and complex ~,” scheduled for release in January 2026, and its powerful lyrics can be read as a declaration of intent from an artist.
Its positive stance—turning even criticism into fuel—will surely encourage those facing adversity.
It’s the perfect song to play when you want to tune out the noise around you, look straight ahead, and feel refreshed.

