It is managed by Stardust Music and currently works under the label chimera energy from Universal Music Japan . Her career began in 2005 with the single Gentleman , which reached number 140 in the Japanese charts. From her fourth single Goodbye , she never made it into the single charts. Her debut album Perfume , which was released in May 2006, reached number 138 on the charts. She worked in a commercial for Sony Ericsson in February 2008 . Kaori Natori has been the singer of the hip-hop / reggae band Spontania since 2010 . As a member of the band, she appears under the name 'Kaori' (in Rōmaji ).