Sotsugyou ~TOP OF THE WORLD~ (卒業 〜TOP OF THE WORLD〜 ; Graduation ~TOP OF THE WORLD~) is Heike Michiyo's second single, released on February 15, 1998. The title track is a Japanese cover of The Carpenters' song, "Top of the World". It reached #35 on the Oricon chart, and sold 7,560 copies in its first week, and 34,810 copies overall.
It was released only a month prior to her debut album.
In December 1997, it was announced that Heike would release her second single. Hatake started the recording in late December. Heike traveled to Los Angeles to meet Richard Carpenter, and he described her as young, attractive and sensitive. He also wished her good luck.[1]