An idol sings a mutual-love song. A collection of happy love songs.
Among the songs sung by idols, there are so many love songs! From bittersweet ballads to upbeat tracks that capture the flutter of romance, there’s a wide variety.
In this article, we’ll be introducing songs that celebrate mutual love from among those many romance tracks.
Each one tells the story of two people who care for each other, so you’re sure to find heartwarming songs that make you feel warm inside.
Be sure to listen while thinking of someone special to you.
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Mutual Love Songs Sung by Idols: A Collection of Happy Love Songs (21–30)
Blue Hawaii Lemon≒JOY
It’s a refreshing love song that captures a sweet-and-tangy, slightly mysterious crush—sparkling like a shaved ice in the summer sun! This is the 3rd single released in June 2025 by ≒JOY, the idol group produced by Rino Sashihara.
Following their 2nd single “First Love Cinderella,” which made them the first female artist in about three and a half years to score two consecutive No.
1 hits, this track showcases a new side of their appeal.
The story of a “one-summer elopement”—putting down your phone and heading to a secret place with someone you like—is portrayed over a melody that’s both wistful and exhilarating.
It’s a perfect companion for a drive that marks the start of summer.
TwinkleStartChou Tokimeki♡Sendenbu
Cho Tokimeki♡Sendenbu’s “Twinkle Start” is set for release in 2025, and it feels like a song that gently speaks of hope for the future.
Its relaxed tempo is striking, and it evokes an image of earnestly reaching out to each listener’s heart.
The lyrics, which depict how one wants to spend time with someone special, are also memorable, conveying a sense of savoring happiness.
The song is featured in a Pokecolo Twin commercial starring group members Hiyori Sakai and Aki Sugata.
It expresses the excitement of the moment when the two’s story begins.
Blue JeansHANA
A mid-tempo ballad that portrays a tender yet slightly bittersweet love, like a pair of well-worn jeans.
This track, released in July 2025 by HANA, who emerged from the audition show “No No Girls,” features lyrics written by producer Chanmina.
You can really feel the ache of nighttime anxiety—wondering “When will we meet again?”—and the loss of confidence that comes from comparing yourself to others.
Although their debut single “ROSE” topped the charts, this release also includes a collaboration with the casual brand DIESEL.
It’s the kind of song that will gently stay by your side on sleepless nights spent worrying about love or when you want to sort out your feelings.
Assaulted by a love song＝LOVE
=LOVE is an idol group produced by Rino Sashihara.
Their 19th single, “Attacked by a Love Song,” set for release in October 2025, is a cute track about the impulses of love, featuring Maika Sasaki in the center position.
With an earnest message—wanting their feelings to be noticed even if their love is exposed—it vividly captures the exhilaration right before a romance begins.
The protagonist, swept away by a sudden rush of emotion, evokes listeners’ sweet and bittersweet memories.
Tell Me Tell Me ☆PiKi
This PiKi track is packed with that sweet-and-sour feeling of wanting to know how your crush really feels.
Released as a single in July 2025, it was chosen as the theme song for a segment on “Oha Suta.” Riding a catchy sound woven from rhythmic beats and futuristic synthesizers, the lyrics express the pure flutter of a protagonist whose mind is completely occupied by the one they like.
The harmony blending Karen Matsumoto’s clear, translucent voice with Haruka Sakuraba’s warm tone is just wonderful.
It’s perfect for when you want to savor the heart-pounding excitement of a love that’s just beginning!
The Sea and Lemon Tea＝LOVE
From =LOVE, produced by Rino Sashihara, here’s a song where summer scenery intersects with the ache of unrequited love.
Included as a coupling track on the single “Zettai Idol Yamenai de,” released in July 2024, this piece drew attention among fans for featuring Hana Oba as center for a full-group song for the first time.
The memories of a summer gone by and a faint love you can’t forget press upon the heart atop a somewhat wistful melody.
In the music video, the protagonist returns to their hometown and reunites with the senior they once had feelings for, portraying a fleeting summer that rekindles their heart; subtle touches also shine through, such as a poster for the “24th Fireworks Festival,” a nod to Oba’s birthday, decorating the set.
It’s the perfect number for a seaside drive or those moments when you suddenly find yourself feeling nostalgic.
More than lovers, less than love (TV Size)＝LOVE
A song by =LOVE produced by Rino Sashihara.
Chosen as the opening theme for a TV anime, the track is included on their 18th single slated for release in February 2025.
This song, which depicts complex feelings of love, features a pop, catchy melody.
Its lyrics align with the anime’s world, expressing the protagonists’ delicate relationships.
Members Kiara Saito, Hitomi Takamatsu, and Iori Noguchi are also set to appear as voice actors in the anime.
It’s a recommended track for anyone who’s experiencing the frustrations of love!