"When You Wish Upon a Star" is a classic song from the 1940 Disney animated film, Pinocchio. Written by Leigh Harline and Ned Washington, it expresses the idea that dreams can come true if one believes in them. The song is performed by the character Jiminy Cricket, who serves as Pinocchio's conscience. The song has become an iconic piece of American music and is often associated with the Walt Disney Company. It has been covered by numerous artists and is frequently used in various media, symbolizing hope and the magic of wishing for a better future.