COUNTDOWN:
Females with Most #1 Singles in the World's Biggest Markets
Based on #1 singles in the world's 11 biggest markets: US, Japan, Germany, UK, France, Canada, Australia, Netherlands, Italy, Brazil, and Spain.
Is Oricon (Japan's main chart) eligible to qualify towards this countdown? I'm not trying to dispute anything I'm just wondering. Ayumi Hamasaki has 38 #1 singles on that chart so I was just curious.