Seiko Oomori, Japanese singer-songwriter

Seiko Oomori is a Japanese singer-songwriter. Her musical career began in the underground music culture of Tokyo's Kōenji neighborhood, briefly playing in the punk band Kuchuu Moranko before going solo and releasing two independent albums until signing with major record label Avex Trax in 2014. Oomori's music style is influenced by idol culture and punk rock among other clashing musical styles, and she is considered one of the early pioneers of the "anti-idol" and alternative idol scenes led by groups like BiS that would eventually give way to the more popular Kawaii metal movement, utilizing shock value and performance art throughout the early parts of her career.

September 18 is the 261st day of the year in the Gregorian calendar; 104 days remain until the end of the year.