Her swan-song `` Kawa no nagare no yÅ ni '' is often performed by artists and orchestras in her honor . Artists who recorded this song include The Three Tenors , Teresa Teng , Mariachi Vargas de Tecalitlan , and the Twelve Girls Band . Her swan-song `` Kawa no Nagare no YÅ ni '' is often performed by numerous artists and orchestras as a tribute to her , including notable renditions by The Three Tenors , Teresa Teng , and Mariachi Vargas de Tecalitlan .