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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.

Mutual Love Songs Sung by Idols: A Compilation of Happy Love Songs (81–90)

Slow motionNakamori Akina

[Official] Akina Nakamori 'Slow Motion (from “Hajimemashite”)' [1st Single (Released May 1, 1982)] Akina Nakamori / Slow Motion
Slow motionNakamori Akina

A debut work distinguished by its mellow melody and crystalline vocals that gently embrace a budding crush on someone met by the seaside.

With an expressiveness hard to believe for a 16-year-old, Akina Nakamori beautifully captures the fateful moment of encounter.

Released in May 1982 and included on the album “Prologue [Jomaku],” it debuted at No.

58 on the Oricon Weekly Singles Chart, quietly winning listeners’ hearts.

The pure feelings of a girl captivated by the sight of a man walking along the sandy beach are sung with the freshness of a sea breeze.

Evoking the premonition of love that everyone experiences as if it were a scene from a film, this piece is one to enjoy on a tranquil spring afternoon.

Gentle RainKoizumi Kyoko

Kyoko Koizumi – Gentle Rain (Official Video)
Gentle RainKoizumi Kyoko

The lyrics penned by Kyoko Koizumi herself delicately depict loneliness in the city, chance encounters, and a heartfelt longing for the other person.

Released in February 1993, the song drew attention as the theme for the drama “To Love” and became a major hit, reaching No.

2 on the Oricon charts and selling over 950,000 copies.

Koizumi’s voice, carried by Shoko Suzuki’s beautifully composed melody, blends poignancy with warmth, gently resonating with listeners.

It’s a song you’ll want to listen to alone on a rainy day—one that softly soothes the heart when you’re feeling the loneliness of the urban bustle or holding onto thoughts of someone dear.

Bittersweetarashi

ARASHI – Bittersweet [Official Music Video]
Bittersweetarashi

A classic Arashi song that expresses a sweet yet bittersweet love with a warm melody that gently embraces the heart.

This gem of a pop ballad showcases the blend of sweetness and bitterness in love through delicate harmonies and elegant dance performance.

Released in February 2014 and used as the theme song for Fuji TV’s Monday 9 PM drama “Heartbroken Chocolatier,” it features a sweet four-on-the-floor house sound infused with technopop elements, creating a soft, springlike atmosphere.

It’s a song that stays close to those who can only meet the one they love in their dreams or who carry an unrequited love.

Love so sweetarashi

ARASHI – Love so sweet [Official Music Video]
Love so sweetarashi

Released by Arashi in February 2007, this song shone brilliantly as the theme for the drama “Boys Over Flowers 2 (Returns).” Its sacred melody, which beautifully depicts the belief in a bond between two people even when they’re apart—as if petals were dancing—teaches us one form of youth.

As the cityscape becomes dyed in spring colors, Arashi’s vocals will gently give you a supportive push forward.

Oh, early summer rainSakurazaka46

A poignant love song by Sakurazaka46 that portrays feelings of love through the motif of early-summer rain.

Released in April 2022 as their fourth single, it received a tremendous response, topping the Oricon Weekly Singles Chart.

Like rain that never stops, the swelling emotions are expressed through delicate vocals and choreography, gently embracing unspoken love and the struggles it brings.

It is a warm track that waits for the arrival of spring, resonating with those in the midst of unrequited love or unable to convey their feelings.

I’M YOUR IDOLtakane no nadeshiko

[MV] I'M YOUR IDOL / Takane no Nadeshiko [HoneyWorks]
I'M YOUR IDOLtakane no nadeshiko

This song powerfully portrays the bond between idols and their fans.

Released digitally in November 2024 as Takane no Nadeshiko’s second single, it features a poppy, catchy sound and lyrics that passionately express an idol’s pride and responsibility.

With a strong message directed at fans, it conveys the joy of walking together and feelings of gratitude.

It’s a must-listen not only for idol enthusiasts but also for anyone looking for a boost of energy.

Mutual Love Songs Sung by Idols: A Collection of Happy Love Songs (91–100)

Specially, do it.=LOVE

=LOVE (Equal Love) / 18th Single “Tokubechu, Shite” [MV full]
Specially, do it.=LOVE

A sweet, bittersweet love song has arrived from =LOVE.

It’s infused with a passion so strong it can’t be captured by a simple “like” or “I love you,” filled with a girl’s possessiveness and pure feelings.

The melody is a pop tune brimming with cuteness, blending adorable charm and earnest emotion in perfect balance.

Set for release as their 18th single on February 26, 2025, the song features lyrics by Rino Sashihara and Maika Sasaki as center.

The music video has already sparked a major reaction, surpassing 5 million views just nine days after its February 2 premiere.

Highly recommended for those who want to empathize with a lovestruck girl’s feelings or revel in the sweet-and-sour memories of young love.