Question: What year did a popular song release that was accompanied by dancing by a famous American dancer?

Related documents: [0]  [DOC] "This Heart of Mine" is a 1946 song. This music standard was written by composer Harry Warren and lyricist Arthur Freed to be featured in the musical film score "Ziegfeld Follies". This song is introduced by Fred Astaire who danced with Lucille Bremer in a lavish and romantic dance. In the same film, Esther Williams swam in a water ballet to a softer, instrumental version of the song. Judy Garland and Maxine Sullivan have also recorded this song. [END] 
[1]  [DOC] Lucille Bremer (February 21, 1917 – April 16, 1996) was an American film actress and dancer. [END]  
Answer: 1946
1946