Famous Japanese idols' 🎂 Birthdays, January 31, Japan
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Japan 
Japanese singerBirthdays by Profession
- Actor (11)
- Association football player (9)
- Seiyū (5)
- Singer (4)
- Baseball player (4)
- Writer (3)
- Mixed martial artist (3)
- Politician (3)
- Samurai (3)
- Tarento (3)
- Golfer (2)
- Comedian (2)
- Translator (2)
- University teacher (2)
- Field hockey player (2)
- Novelist (2)
- Composer (2)
- Mangaka (2)
- Child actor (2)
- Ice hockey player (2)
Birthdays by Region
- Tokyo (11)
- Ōsaka Prefecture (6)
- Kantō region (4)
- Ibaraki Prefecture (4)
- Hyōgo Prefecture (3)
- Hokkaidō Prefecture (3)
- Fukuoka Prefecture (3)
- Kanagawa Prefecture (3)
- Chiba Prefecture (2)
- Kumamoto Prefecture (2)
- Miyagi Prefecture (2)
- Shizuoka Prefecture (1)
- Gifu Prefecture (1)
- Aichi Prefecture (1)
- Yamaguchi Prefecture (1)
- Mie Prefecture (1)
- Ōita Prefecture (1)
- Hiroshima Prefecture (1)
- Yamagata Prefecture (1)
- Niigata Prefecture (1)
