The 02/03 there will be the TOKYO GIRLS COLLECTION at Yoyogi national stadium and they annonce that for the opening "a leading Japanese diva will appear in secret!"
People speculate that's Ayu because she is considered like the Diva of Japan and other think it's Namie because she is more popular now than her but Namie is a singer not a songstress ? Maybe Koda Kumi but she is not considered like a Diva in Japan so ?
https://twitter.com/TGCnews
http://girlswalker.com/tgc/13ss/