What is "watarasebashi"

is the 14th single from Aya Matsuura, who was a Hello! Project solo artist at the time. It was released on July 14, 2004 under the Zetima label.

Its title track was originally released as a single by its lyricist Chisato Moritaka in 1993. Matsuura's fellow Hello! Project soloist Maki Goto is another artist who has covered the song.