Question: Who sang blue moon in american werewolf in london?

Disambiguated questions and answers:
context: The record reached number one on the "Billboard" Pop chart for three weeks and number one on the R&B chart. It also peaked at on the UK Singles Chart. The Marcels' version of "Blue Moon" sold a million copies, and was awarded a gold disc. It is featured in the "Rock and Roll Hall of Fame's 500 Songs that Shaped Rock and Roll". The Marcels doo-wop version is one of three different versions used in the 1981 film "An American Werewolf in London" with this version appearing at the end credits of the film. A version by Bobby Vinton plays during the film's opening titles while a version by Sam Cooke plays during the film's famous werewolf transformation scene. The Marcels' version of the song is referenced in the 1962 Academy Award-nominated animated short Disney musical film, "A Symposium on Popular Songs" during the song, "Puppy Love Is Here to Stay" written by Robert & Richard Sherman.
question: Who played the the song "Blue Moon" in the end credits of American Werewolf?
short_answers: The Marcels
wikipage: Blue Moon (1934 song)
context: The record reached number one on the "Billboard" Pop chart for three weeks and number one on the R&B chart. It also peaked at on the UK Singles Chart. The Marcels' version of "Blue Moon" sold a million copies, and was awarded a gold disc. It is featured in the "Rock and Roll Hall of Fame's 500 Songs that Shaped Rock and Roll". The Marcels doo-wop version is one of three different versions used in the 1981 film "An American Werewolf in London" with this version appearing at the end credits of the film. A version by Bobby Vinton plays during the film's opening titles while a version by Sam Cooke plays during the film's famous werewolf transformation scene. The Marcels' version of the song is referenced in the 1962 Academy Award-nominated animated short Disney musical film, "A Symposium on Popular Songs" during the song, "Puppy Love Is Here to Stay" written by Robert & Richard Sherman.
question: Who played the the song "Blue Moon" in the opening titles of American Werewolf?
short_answers: Bobby Vinton
wikipage: Blue Moon (1934 song)
context: The record reached number one on the "Billboard" Pop chart for three weeks and number one on the R&B chart. It also peaked at on the UK Singles Chart. The Marcels' version of "Blue Moon" sold a million copies, and was awarded a gold disc. It is featured in the "Rock and Roll Hall of Fame's 500 Songs that Shaped Rock and Roll". The Marcels doo-wop version is one of three different versions used in the 1981 film "An American Werewolf in London" with this version appearing at the end credits of the film. A version by Bobby Vinton plays during the film's opening titles while a version by Sam Cooke plays during the film's famous werewolf transformation scene. The Marcels' version of the song is referenced in the 1962 Academy Award-nominated animated short Disney musical film, "A Symposium on Popular Songs" during the song, "Puppy Love Is Here to Stay" written by Robert & Richard Sherman.
question: Who played the the song "Blue Moon" during the transformation scene in American Werewolf?
short_answers: Sam Cooke
wikipage: Blue Moon (1934 song)

Long-form answers:
knowledge: content: "Blue Moon" is a classic popular song written by Richard Rodgers and Lorenz Hart in 1934. 
wikipage: Blue Moon (1934 song)
content: The Marcels doo-wop version is one of three different versions used in the 1981 film An American Werewolf in London with this version appearing at the end credits of the film. A version by Bobby Vinton plays during the film's opening titles while a version by Sam Cooke plays during the film's famous werewolf transformation scene. 
wikipage: Blue Moon (1934 song)
long_answer: "Blue Moon" is a classic popular song written by Richard Rodgers and Lorenz Hart in 1934. The Marcels created a doo-wop version that is one of three different versions used in the 1981 film An American Werewolf in London. The Marcels' version is play in the end credits of the film. A version by Bobby Vinton plays during the film's opening titles, while a version by Sam Cooke plays during the film's famous werewolf transformation scene.