Over the years she has written many great hits such as Love Life（愛のくらし) ('71), The Gray Eyes（灰色の瞳) ('74), An Old-Fashioned Bar（時代おくれの酒場) ('77), If I Could Fly (この空を飛べたら) ('78),No Regrets for My Life（わが人生に悔いなし) ('87), Million Roses（百万本のバラ) ('87), A Wrecked Ship（難破船) ('87), The River Flows（川は流れる) ('93).
In addition, she has successfully covered other Asian and European hits in her own style.
She gives nearly 60 concerts annually locally and in many other countries, including:
U.S.S.R. ('68), China ('81, '95), U.S.A. ('87, '88, '90, '97, '02, '04), France ('89, '92, '95), Belgium ('89), Russia ('92, '00), Egypt ('94), Austria ('95), Bulgaria ('95), Brazil ('98), Czech Republic ('95), Vietnam ('99, '00), Canada ('88, '02), Turkey ('02), and Cuba ('04).
In recent years, she is branching out and attracting diverse music audiences. Among the most notable partnerships are with such artists as Gospellers, The Boom, and Begin. She participated in Fuji Rock Festival in 2006 and ap Bank Fes in 2007, both of which are annual concerts very popular with younger music fans.
Off stage, she is lending her celebrity to many social causes. In 1998, she became Councilor for WWF (Worldwide Fund) JAPAN and in 2000, the Ministry of the Environment appointed her as a special envoy for UNEP (United Nations Environment Program).
She has visited countries addressing environmental issues, such as:
Thailand, Indonesia, Mongolia ('01), South Korea, Bali ('02), Johannesburg for WSSD (World Summit on Sustainable Development) ('02), Uzbekistan, Kyrgyzstan ('03), Fiji ,Tonga ('03), India, China ('04), Thailand,Sri Lanka ('05), Malaysia, Borneo ('06), Vietnam ('07), Australia ('08), Tuvalu ('09), Bangladesh, and Nepal ('11).
Although mainly a singer, she is also known as an actress and a writer. Her hobbies include pottery and Japanese calligraphy, in which she excels, and she has had exhibits of her work all over Japan .