"Diane" (also known as "Diane (I'm in Heaven When I See You Smile)") is a song by Ernö Rapée and Lew Pollack,[1] and was originally written as a theme song for the 1927 silent movie 7th Heaven. Its musical composition entered the public domain on January 1, 2023.[2] The song title is sometimes mistakenly referred to as "My Diane" or confused with the Beach Boys song "My Diane", which is a different song.
The song was a popular single by Irish band The Bachelors, which was released on January 3, 1964 on the Decca label (Decca F11799) and produced by Michael Barclay. It reached number-one in the UK Singles Chart, number two in Ireland and number three in Australia.[citation needed] The Bachelors were the first act from the Republic of Ireland to have a number-one single in the UK charts. In the US, "Diane" was the Bachelors most successful single, peaking at number 10 on the Billboard Hot 100 chart in 1964.