An acquaintance found her collapsed in the bathroom of her home in Tokyo on Dec 6. Read more at straitstimes.com.
Nakayama was slated to hold a Christmas concert in Osaka on the evening of her death. But earlier in the day, her official website announced the cancellation of the concert as the star was feeling unwell.
The site later confirmed the news of her death in another post by her management agency Big Apple, which said it was shocked and saddened by the sudden tragedy.
Nakayama, a Tokyo native, made her debut as an actress in January 1985 and as a singer in June that year with her single