65th Academy Awards
There was a minor controversy when Snow White (Disney character) was presenting an award for Best Animated Short Subject. She was voiced by Mary Kay Bergman, Adriana Caselotti, the original voice of Snow White was not aware of this. She was reportedly offended that Disney didn't ask her to voice Snow White during the ceremony.
Bill Shirley
William Jesse "Bill" Shirley (July 6, 1921 – August 27, 1989) was an American actor and tenor/lyric baritone singer who later became a Broadway theatre producer. He is perhaps best known as the speaking and singing voice of Prince Phillip in Walt Disney's 1959 animated classic "Sleeping Beauty" and for dubbing Jeremy Brett's singing voice in the 1964 film version of "My Fair Lady".