| "So Crazy" | ||||
|---|---|---|---|---|
 | ||||
| Single by Namie Amuro | ||||
| from the album Style | ||||
| A-side | "Come" | |||
| Released | October 16, 2003 | |||
| Recorded | 2002–2003 | |||
| Studio | On Air Azabu Studios (Tokyo) | |||
| Genre | R&B | |||
| Length | 4:34 | |||
| Label | Avex Trax | |||
| Songwriter(s) |
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| Producer(s) | Cobra Endo | |||
| Namie Amuro singles chronology | ||||
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"So Crazy" is a song by Japanese singer Namie Amuro. It was released on October 16, 2003, by Avex Trax, and serves as the fourth and final single from her sixth studio album, Style (2003). Furthermore, all physical and digital formats included an additional A-side titled "Come," which appears on the parent album. "So Crazy" was written by Full Force, Jennifer "JJ" Johnson, Michico, and Tiger, and produced by Cobra Endo.
"So Crazy" is a love song that incorporates elements of hip-hop and R&B music. Music critics praised "So Crazy" for its urban sound, drawing parallels with Western music and influences. To promote the song, Japanese cosmetics company Lucido-L used it as their commercial theme. However, the single performed moderately in Japan, reaching number eight on the Oricon Singles Chart, making it one of her lowest charting singles in the country.
Masashi Mutō directed the music video for the single, which appeared on her video albums Filmography 2001–2005 (2005). It was also included in the set lists of three Amuro concerts and subsequent live albums. "So Crazy" first appeared on Amuro's third greatest hits album, Best Fiction (2008), and was later reworked and re-recorded for her seventh greatest hits and final album, Finally (2017), before her retirement.