Question: Which American actor, screenwriter, director, producer, singer-songwriter and author sang this song from the 1971 movie "Willy Wonka & the Chocolate Factory" that was written by British composers Leslie Bricusse and Anthony Newley?
Sentence (from "Gene Wilder"): Jerome Silberman (June 11, 1933 – August 29, 2016), known professionally as Gene Wilder, was an American actor, screenwriter, director, producer, singer-songwriter and author.
Relevant evidence: Yes