Talk:List of Music in It's Always Sunny in Philadelphia/@comment-208.253.121.162-20140307212534/@comment-67.164.173.72-20141111040058

The scene was shot without music and Danny DeVito sang "go for it" as he was dancing, so they wrote and recorded a bit to play in the background that would fit in with DeVito's line. It's falsetto, so it sounds like women's voices and you would never guess it's them.