The song that belongs to the Gemini is "Bohemian Rhapsody" by Queen.

Gemini is the astrological sign represented by twins, and the song "Bohemian Rhapsody" reflects the dual nature of the sign. The song is divided into several distinct sections, each with its own mood and tempo, much like the multifaceted personality of a Gemini.

The lyrics also touch on themes that resonate with Gemini traits. The opening lines, "Is this the real life, or is this just fantasy? / Caught in a landslide, no escape from reality," capture the introspective, philosophical nature of a Gemini. The song also explores themes of change and duality, with lines like "Mama, just killed a man / Put a gun against his head, pulled my trigger, now he's dead" juxtaposed with "Nothing really matters, anyone can see / Nothing really matters, nothing really matters to me."

Furthermore, the song is known for its elaborate harmonies and intricate vocal arrangements, which perfectly capture the chatty, communicative nature of a Gemini. Geminis are known for their love of communication and exchange of ideas, and the complex sound of "Bohemian Rhapsody" reflects this.

In conclusion, "Bohemian Rhapsody" by Queen is the quintessential Gemini song, perfectly capturing the complex and multifaceted nature of the sign. From its introspective lyrics to its intricate harmonies, the song perfectly embodies the traits of a Gemini.