The 2007 single "Hotarubi" showcases Rythem's signature blend of pop and R&B, characteristic of their mid-career output.
- "Hotarubi" was released on July 18, 2007, by Sony Music Direct (Japan) Inc.
- The single was part of Rythem's prolific output during the 2000s pop and R&B boom in Japan.
- The song falls within Rythem's established discography, which includes multiple charting singles and albums.
Rythem is a Japanese pop and R&B duo formed in 2003. They are known for their vocal harmonies and relatable lyrics.
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