Task: Explanation
Input (English): "Shall We Dance?" is a show tune from the 1951 Rodgers and Hammerstein musical, "The King and I". It is sung by Anna Leonowens and the King of Siam, played by Gertrude Lawrence (in the original Broadway production) and Yul Brynner respectively. In addition, it was sung by Valerie Hobson in the original London West End production, and Marni Nixon (who only voiced-over songs while Deborah Kerr acted) in the 1956 film of "The King and I". The song is about Anna reminiscing over the idea of finding love at an English dance. The song comes about after a conflict of love's meaning between Anna and the King; the King believes that love is a "silly complication of a pleasant simplicity" and a "fairy tale" while Anna believes that love is real and is natural. They sing the song "The Song of the King" which expresses predominantly the viewpoint of the King. After the song, Anna is trying to explain the idea of love in a simple way to the King and becomes caught up in her own experience of love at first sight which is told in the song "Shall We Dance?". Question: Shall We Dance? was a tune from the musical that was sung by which soprano in the film version? Answer: Margaret Nixon McEathron
Output (English):  In addition, it was sung by Valerie Hobson in the original London West End production, and Marni Nixon who only voicedover songs while Deborah Kerr acted in the 1956 film of The King and I.