SMAP Birthday Songs and Popular Songs Ranking [2026]

Last updated:2026/2/1

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Formed in 1988 and debuting in 1991, SMAP spent a few difficult years after their debut, but around 1995 they became so popular that they sparked a social phenomenon.

They played a key role in bringing new possibilities to the idol scene—expanding into dramas, variety shows, and news anchoring.

Here, we present a ranking of SMAP’s ballads.

SMAP's birthday song

The one and only flower in the worldSMAP1rank/position

The Only Flower in the World – SMAP

A song released in 2003 has transcended time and generations and continues to be loved today.

You still often hear the public’s heartfelt calls for “SMAP to reunite!” The song was written and composed by Noriyuki Makihara, who is said to have hurriedly finished it under a tight deadline.

Its lyrics—conveying the message that “you don’t have to aim to be number one; each and every person is special”—recall Misuzu Kaneko’s poem “We’re all different, and that’s all right.” How about singing this song when someone asks for “just one number!” at a birthday party? It’s a highly recommended track that brings everyone present together in a shared sense of unity.

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