Easy A () SoundTracks on IMDb: Memorable quotes and exchanges from movies, TV series and more. May 14, Looking amazing in the lingerie from the scene we watched her perform in for Easy A, Emma Stone confidently walked over to talk to us about her new racy role still rocking the sexy number. Q: We understand you actually sing in the film. Emma Stone: I do. I'm already kind of embarrassed enough that I. "Knock On Wood" is a hit song written by Eddie Floyd and Steve Cropper and originally performed by Floyd. His recording peaked at number 28 on the Billboard Hot and spent one week at number 1 on the Soul Singles chart. The song was written in the Lorraine Motel in Memphis, Tennessee (now The National.