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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 Collection of Happy Love Songs (41–50)

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!

Mutual-love songs sung by idols. A collection of happy love songs (51–60)

Assaulted by a love song=LOVE

=LOVE (Equal Love) / 19th Single “Attacked by a Love Song” [MV full]
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.

How do you like this version of me?Chou Tokimeki♡Sendenbu

Cho Tokimeki♡Sendenbu / “How Do You Like This Kind of Me?” Dance Moving
How do you like this version of me?Chou Tokimeki♡Sendenbu

A song that captures the feelings of a girl heartbroken in love is gaining attention.

Created by Koresawa, this piece was produced as a sequel to “Mojokyuu ni Kawaii no!” (The Cutest Ever!).

Set to a lively rhythm, the lyrics weave together self-affirmation and anxiety.

They express a desire to be accepted—including the “annoying sides” and the “imperfect parts.” Released digitally on October 1, 2024, the track serves as the lead song for the album “Tokimeki Rulebook,” slated for release on December 4.

It’s a recommended listen for anyone troubled by love or wanting to cherish their true self.

Now, the moon is waxing≒JOY

≒JOY (Nearly Equal Joy) / “Now, the Moon Is Full” [Full MV] Nationwide Tour 2025 Theme Song
Now, the moon is waxing≒JOY

≒JOY is an idol group that has been on a remarkable run since their debut in January 2024.

Released digitally in August 2025, this song is a love ballad that sings of pure feelings for someone special.

In fact, it’s a cover of a track that Ms.

Sashihara once wrote for HKT48.

The refreshing sound arrangement evokes the image of a star-studded night sky.

It’s the perfect dose of idol pop for when you want to immerse yourself in single-minded love.

Real Sexy!Sexy Zone

A refreshing pop tune that makes your heart skip just by listening, filling you with the courage to take a step into a new world! It lifts your spirits as if someone were inviting you, “Let’s go find a new view together!” The lyricist’s intention to convey “the breath of spring and hope” is beautifully expressed.

Released in May 2013 as a double A-side single, it debuted at No.

1 on the Oricon charts and was used as the theme song for Fuji TV’s “Super Infiltration! Real Scope Hyper.” It’s sure to give you a powerful push whenever you’re starting a new challenge or want to lift your mood.

Our Uniform Christmas=LOVE

=LOVE (Equal Love) / 2nd Single “Our Uniform Christmas” [MV full]
Our Uniform Christmas=LOVE

Doesn’t the idea of spending Christmas in a school uniform make many hearts flutter? Walking through town at dusk with someone you like—the exhilaration and the slightly bittersweet mood blend beautifully in this quintessential winter song.

Producer Rino Sashihara poured her strong desire to create “a Christmas song” into this track, which was released in December 2017 as =LOVE’s second single and became one of the group’s signature early hits.

It lets you relive a sparkling page of youth, bringing back those sweet and sour memories from your school days.

Give it a listen when you want to feel the excitement of a budding romance all over again.

When I think of youTOKIO

When introducing TOKIO’s songs, there’s no way we can leave out this jewel of a ballad! It’s one of the group’s masterpieces—a beautifully mellow love ballad.

Delicate guitar tones gently intertwine with vocals that are sweet yet tinged with sadness.

The song is written from the perspective of a shy man, and the way it carefully portrays the wavering of a heart in love is truly captivating, don’t you think? Released in February 1999, it also served as the theme song for their flagship variety show and was included on the acclaimed album “YESTERDAY & TODAY.” It’s a track that stays close to your heart on quiet nights when you’re thinking of someone special.