Where is the song "A Fifth of Beethoven" used in Saturday Night Fever"?

I know they were in the dance club, but not sure what the exact scene is. Been several years since I watched the movie. Try youtube.com, maybe it's on there! Oh and to the brainiac who said its not the title, its Beethovens 5th, well get over yourself, because it is A FIFTH OF BEETHOVEN...BY WALTER MURPHY. What now?