Long-Haired Hare (1949)

Long-Haired Hare is a 1948 Warner Brothers Looney Tunes theatrical cartoon short released in 1949, directed by Chuck Jones and written by Michael Maltese. In addition to including the homophones "hair" and "hare", the title is also a pun on "longhairs", a characterization of classical music lovers. Nicolai Shutorov provides the singing voice of Giovanni Jones.

More at Wikipedia.