Summer Songs That Hit in the 2000s | A Look Back at Nostalgic Summer Tunes!
Summer might just be the most exciting season of the year! When you think of summer, you think of outdoor fun like music festivals, the beach, fireworks, barbecues, and road trips.
For students, there’s also the long summer break—there’s no shortage of fun.
And no summer memories are complete without music to lift your spirits even higher.
In this article, we’re focusing on summer songs released in the 2000s and introducing a selection of hit tracks.
Whether you remember those days or aren’t very familiar with music from the 2000s, we hope you enjoy these sparkling summer tunes.
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- Reiwa-era summer songs: A roundup of new staple tracks that color the hot summer
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Summer Songs That Hit in the 2000s | Introducing Nostalgic Summer Tunes! (51–60)
SMILYOtsuka Ai

“SMILY” is Ai Otsuka’s eighth single, released in 2005.
It was featured in Lion’s “Ban Powder Spray” commercial and reached number one on the Oricon Singles Chart.
It’s an upbeat, cheerful happy song that lifts your spirits just by listening.
The music video was filmed in Saipan and is filled with summer vibes, including beaches and watermelon-splitting.
Be sure to give it a listen on your next outing!
Twilight SurroundRIP SLYME

This piece feels like a sonic rendering of that unique atmosphere as summer dusk fades into night.
The warm tones of the acoustic guitar blend beautifully with the gentle scratches, wrapping you in a sensation that makes your heart feel a little lighter as you listen.
Released in October 2004 as their tenth single, it peaked at No.
5 on the Oricon Weekly Chart.
Celebrated as a classic that showcases the depth of their musicality, it continues to be cherished by many listeners.
It’s the kind of song that quietly keeps you company on a summer night—when you want to relax in a slightly cooled room or reflect on the day, lost in thought.
Flowers blooming in the night skyMEGARYU

MEGARYU is a reggae duo that went on hiatus in 2014 and whose two members are now active individually.
Their song “Yozora ni Saku Hana,” included on their first album, “Joushou Kiryuu,” is a comfortable number that contrasts a catchy melody with emotional rap.
The lyrics evoke memories of a summer that won’t come back, something many listeners will likely relate to and overlap with their own youth.
It’s a summery tune with a pop sheen tinged with melancholy that makes you want to surrender to its easygoing beat.
Feeling great!!mihimaru GT

Data-wise, it’s a song certified as a million-seller in the “chaku-uta” format, and even that term itself feels nostalgic, doesn’t it? Surely no one can listen to mihimaru GT’s massive hit “Kibun Jōjō ↑↑” without feeling the summer vibes! The “↑↑” in the title boosts that summer hype even more.
You hear it whenever summer draws near, so it doesn’t really feel like an old track, right? It’s a total hit at summer clubs and discos, and of course, it’s highly recommended for today’s teens too!
sparklingaiko

Singer-songwriter aiko, who scored numerous summer hits in the ’90s such as “Hanabi” and “Kabutomushi,” released “Kira Kira” in 2005—a refreshing pop tune crafted with summer in mind as the theme song for the Kansai TV/Fuji TV drama “Ganbatte Ikimasshoi.” Its intro features a memorable piano phrase that makes you feel like something good is about to happen; the sound alone conjures up a vision of a clear, translucent summer sky.
Shaka Beach ~Laka Laka La~UVERworld

Characterized by samba-style rhythms and Latin hues, this song is UVERworld’s eighth single, released on August 8, 2007.
Set against a summer beach backdrop, its lyrics vividly portray the free and open spirit of youth.
The bright, lively melody seems to symbolize the joy of summer days.
For many, listening to this track may bring back memories of the summer when it was released.
Sunny Day SundaySenchimentaru Basu

This song by Sentimental Bus is a refreshing track that evokes summer high school baseball.
Its lyrics, which depict a page of youth unfolding in the height of summer, and its driving melody leave a strong impression.
Released in 1999, it’s also well known for being used in a Pocari Sweat commercial.
Another distinctive feature is its baseball-centric production, including extensive sampling of sound effects from the baseball anime “Star of the Giants.” Although many years have passed since its release, it remains a beloved staple for baseball cheering.
Be sure to give this memorable classic a listen—it will stay with you alongside your summer memories!
planetariumOtsuka Ai

A song performed by singer-songwriter Ai Otsuka that seems to express the movements of the heart tied to summer scenery.
It drew attention for being used as an insert song in the drama Boys Over Flowers and is one of Otsuka’s signature tracks, alongside Sakuranbo.
Centered on the sound of the piano while incorporating Japanese elements, it resonates with a calm, layered depth.
Looking back on summer memories, it overflows with a sense of poignancy—a piece that conveys someone cherishing their memories even as they carry their sadness.
sunflowerYūsuke

It’s a very love-filled song that perfectly suits Yusuke Kamiji—who is a talent, actor, and also a singer—with his gentle singing voice, and it’s a truly encouraging piece.
It’s a tender song that brings to mind lots of summer sunflowers and a sparkling sun, filling you with warmth.
Happy Summer WeddingMōningu Musume.

Morning Musume’s summer song “Happy Summer Wedding” was released in early summer 2000.
It sold 1.37 million copies, the third-highest in the group’s history, and reached No.
1 on the Oricon Singles Chart.
The song was used as the opening theme for TV Tokyo’s variety show “Find the Idol!” With its upbeat, bright sound, it’s the perfect wedding song for early-summer June brides.
Be sure to liven up your party with “Happy Summer Wedding”!



