Although mature, she's kept herself in pretty good shape and still attractive. Really! Just remember Shizuka Kudo was also in Onyanko Club.
Think she stopped when the group disbanded in '87. Then she went on to doing TV, and dramas.
She also guests regularly in London Hearts for the past few years.
Her most popular song should be "Valentine Kiss", which came out in '86. (I was only 7 then!
)