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A roundup introduction to the debut songs of female idols who debuted in the 2000s!

Female idols who debuted in the 2000s and dazzled the scene with their brilliant success.

Their debut songs—now almost legendary—are packed with the fresh charm that vividly colored the music scene of the time.

In this article, we’ve gathered the first singles from idols who made their debut in the 2000s.

Some groups are still active today as idols or artists, while others are now widely admired as actresses.

Whether you witnessed their debuts in real time or discovered them later, enjoy these gems where nostalgia and freshness coexist.

A roundup of debut songs by female idols who debuted in the 2000s! (1–10)

Linear Motor GirlPerfume

[Official Music Video] Perfume “Linear Motor Girl”
Linear Motor GirlPerfume

Now transcending the bounds of idolhood and captivating fans around the world with their diverse performances as artists, the three-member girl group Perfume made their major-label debut with the song “Real Motor Girl.” During their indie period, they had many tracks with a kayōkyoku-style vibe, but this landmark song marked a successful change in direction.

The distinct, effects-processed vocals laid the foundation for Perfume’s current sound.

Heart-Pounding! LOVE MailMatsuura Aya

Aya Matsuura – Heart-Pounding! LOVE Mail [PV]
Heart-Pounding! LOVE MailMatsuura Aya

Ayaya—Aya Matsuura—captivated countless people with that quintessential “this is what an idol should be!” aura, to the point where calling her a once-in-a-century idol isn’t an exaggeration.

Her debut single, “Doki Doki! LOVE Mail,” is set in Shimokitazawa and portrays a girl waiting for a message from her boyfriend.

Back then, every high school boy was crazy about Ayaya! Maybe you were one of them, too?

I don’t obey ~Our Pride~Dream5

Dream5, a group born from an audition project on NHK Educational TV’s “Tensai TV-kun MAX,” debuted in November 2009 with a cool, powerful dance track.

Its rebellious spirit—refusing to obey adults and choosing one’s own path—resonates over a sound crafted by m.c.A·T.

The song was featured in the program’s music segment and peaked at No.

30 on the Oricon weekly chart.

It was later included on the mini-album “RUN TO THE FUTURE.” When you need the courage to take on a challenge, this track’s pure energy gives you a push forward.

A roundup introduction to debut songs by female idols who debuted in the 2000s! (11–20)

SHALL WE LOVE?gomattou

Gomattou “SHALL WE LOVE?” Music Video
SHALL WE LOVE?gomattou

This is the only single by a special unit that brought together three solo idols who were immensely popular in Hello! Project at the time, released in November 2002.

The star-studded lineup of Maki Goto, Aya Matsuura, and Miki Fujimoto delivers a cool R&B sound that stands apart from their usual sweet image.

The song portrays a woman who takes the lead in love, provocatively challenging her partner with a confident attitude.

It topped the Oricon Weekly Chart and is also known for later being included on each member’s solo album.

This danceable number, perfectly suited to a city nightscape, is sure to lift your spirits as you listen.

Relax!nōsurībusu

This is the debut single released in November 2008 by No Sleeves, a unit formed by standout AKB48 members.

When you hear the names Haruna Kojima, Minami Takahashi, and Minami Minegishi, you probably think first of their achievements in AKB48, right? This track presents a new side of the trio with the concept of “taking off their uniforms and breaking out of Akihabara.” Set to a light, 80s-evoking disco sound, it gently tells those who are already doing their best, “It’s okay to take a break.” It’s a song that seeps into your heart with their down-to-earth encouragement, especially when you want to ease up a little.

U ♡ Mebanira bīnzu

This is Vanilla Beans’ memorable debut single, released in October 2007 with the tagline “Riding the Nordic breeze.” Its stylish, slightly retro sound evokes Swedish pop and feels wonderfully pleasant.

The theme embedded in the title—“You and I”—conveys the flutter of a budding romance and that sweet-and-sour feeling.

As the group’s starting point, the song was also included on their best-of album, VaniBest.

Your sweet tasteMeron Kinenbi

Melon Kinenbi 'Your Sweet Taste' Music Video
Your sweet tasteMeron Kinenbi

Formed in 1999 under Hello! Project, Melon Kinenbi is also known for never having any member changes over their 10-year run.

Their memorable debut single was released in February 2000, with lyrics and composition by none other than Tsunku♂.

The lyrics, packed with the fluttery excitement and sweet thrill of a budding romance, really hit home.

The song was also used as the ending theme for the anime Sorcerous Stabber Orphen Revenge.

It’s the perfect number for when you’ve fallen for someone and every day seems to shine—when you want to soak in that feeling of happiness.