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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A mutual-love song sung by an idol. Collection of happy love songs (71–80)
Sweetest TuneTravis Japan

A sweet and bittersweet love song that rhythmically captures the flutter and confusion of falling in love.
Lightly singing of pure feelings for the other person, this track was released in June 2024 as an insert song for the TV Asahi drama “Tokyo Tower,” and is also included on Travis Japan’s album “VIIsual.” It’s a song anyone harboring pure romantic feelings won’t be able to help but relate to—perfect for those who want to spend a heart-fluttering moment with bright, pop sounds.
Koisuru Hikarinaniwa danshi

A fresh rock number that vividly captures the sparkle of a moment in love.
It’s packed with youthful scenes everyone can relate to—your heart racing when your eyes meet, the ache of passing by each other, and the frustration of feelings you can’t put into words.
Released in August 2024, the song was chosen as the theme for the film “Koi wo Shiranai Bokutachi wa” (We Who Don’t Know Love), starring Ryusei Onishi of Naniwa Danshi.
It’s the perfect track for those moments when your feelings for someone are growing or when you need the courage to confess.
Jasmine LOVEsairento rapusodi

This is a bittersweet love song by a four-member men’s group from Shizuoka, singing about a love that feels so close yet just out of reach.
The melody and lyrics gently resonate with listeners, skillfully portraying the subtle distance and shifting emotions of romance.
It’s the title track of their third single, set for release in January 2025, and the music video features the members taking on full-fledged choreography.
Filmed in Thailand, the MV captivates with its refreshing visual beauty anchored in white and blue tones.
It’s a recommended track for anyone struggling with love or wanting to revisit the sweet, bittersweet pangs of romance.
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

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.
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.


