IU’s Most Popular Songs Ranking [2026]

Through the NightIU1rank/position

[MV] IU(아이유) _ Through the Night(밤편지)

Singer-songwriter IU, affectionately known in Korea’s music scene as the “Nation’s Little Sister” and active as an actress as well.

Among the songs for which she wrote the lyrics herself, the masterpiece themed around a night letter is “Through the Night.” Released in March 2017 as a pre-release track from the album Palette, it’s a ballad characterized by its acoustic sound, expressing delicate, modest emotions—like entrusting unspoken feelings to the glow of fireflies.

Her voice, which carefully weaves each word, will quietly resonate with those facing farewells or new beginnings.

Filled with kindness and the wish for a loved one to have sweet dreams, this song is perfect for listening alone on a graduation-season night.

Let its heartwarming message bring you comfort.

Good Day(좋은 날)IU2rank/position

IU(아이유) – Good Day(좋은 날) (Sketchbook) | KBS WORLD TV 200918

A signature early hit by the brilliantly talented artist IU, affectionately known as the “Nation’s Little Sister,” Good Day is a medium up-tempo tune included on her 2010 mini-album Real.

It’s heart-fluttering.

The lyrics portray the bittersweetness of a one-sided crush, but the cute melody and IU’s charming vocals together make you feel giddy with excitement! It’s all framed in a positive light.

Some people probably always listen to it before and after a date! And that triple high-note climax at the end is breathtaking and truly uplifting!

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KEI

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eightIU3rank/position

[IU] ‘eight’ Acoustic Ver. Live Clip

Singer-songwriter IU, who is so popular in South Korea that she’s called the “Nation’s Little Sister” and is also active as an actor, released the digital single “Eight” on May 6, 2020.

The song drew attention for her collaboration with BTS member SUGA.

The lyrics, which feel like she’s addressing a friend who took their own life, convey a sense of loneliness and despair at being left behind.

It’s a sentimental number whose pop sensibility is laced with melancholy, with melodies and arrangements that tug at the heart.

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Hoshino Takashi

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CelebrityIU4rank/position

[MV] IU(아이유) _ Celebrity

Among K-POP songs, IU’s “Celebrity” delivers a heartwarming message.

Its soothing, comforting melody makes it perfect for a quick mental reset while studying.

The lyrics feel like IU is right by your side as a friend, encouraging you—helping you cherish yourself while nudging you to keep going just a little more.

Plus, the familiar choreography makes it great for a refreshing break.

Even in tough times, this song matches your pace and guides you toward a more positive mindset.

Give it a listen for a boost when you’re tackling your studies or work.

BluemingIU5rank/position

[MV] IU(아이유) _ Blueming(블루밍)

IU is a South Korean singer-songwriter and actress.

She’s a national diva so popular in Korea that she’s known as the “Nation’s Little Sister.” Amazingly, she debuted in September 2008 at the age of 15! Of course, “Blueming” is a Korean-language song as well.

It’s a love song that candidly expresses the cute yet complicated feelings of a girl texting or emailing the person she likes.

With its adorable lyrics and IU’s overwhelming vocal prowess, it’s a track that captivates every listener.

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Kanako

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