8. Cute
These girls debuted in 2007 and immediately on Japanese Record Award for Best New Artist. Although they’ve put out 8 studio albums, none of them reached number one spot on the charts.
Overall score:5
7. Morning Musume
The oldest running group on our list being there from 1997, Morning Musume is the Oricon chart record holder for most top ten singles, with that number being 50. But with frequent line-up changes the group started losing its popularity in recent years.
Overall score:6
