"When You Wish upon a Star" is a popular song written by Ned Washington and Leigh Harline and introduced in the 1940 Walt Disney movie Pinocchio, where it is sung by Cliff Edwards in the character of Jiminy Cricket, over the opening credits and again in the final scene of the film. The song won the Academy Award for Best Original Song that year.

The song has – like Mickey Mouse – become an icon of The Walt Disney Company, used in the opening sequences of Walt Disney anthology television series and in multiple versions of Walt Disney Pictures' opening logos. The ships of the Disney Cruise Line, the Disney Wonder, the Disney Magic, and soon the Disney Dream, use the iconic first seven notes of the song's melody as their horn signals. Additionally, many productions at Disney theme parks – particularly fireworks shows and parades – employ the song. Beginning with 2006's Pirates of the Caribbean: Dead Man's Chest, the opening that precedes all theatrically-released Disney films uses the melody of the song.
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http://en.wikipedia.org/wiki/When_You_Wish_upon_a_Star

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When you wish upon a star
Makes no difference who you are
Anything your heart desires
Will come to you

If your heart is in your dream
No request is too extreme
When you wish upon a star
As dreamers do

Fate is kind
She brings to those who love
The sweet fulfillment of
Their secret longing

Like a bolt out of the blue
Fate steps in and sees you through
When you wish upon a star
Your dreams come true

Fate is kind
She brings to those who love
The sweet fulfillment of
Their secret longing

Like a bolt out of the blue
Fate steps in and sees you through
When you wish upon a star
Your dreams come true