Broadway hoofers perform "The Cups Song," led by Christopher Rice of The Book of Mormon. It's an accomplishment when you learn how to perform the cup routine made famous by Lulu and the Lampshades and later featured in a movie, but try doing it with your feet -and then try doing it exactly the same as the the rest of the chorus line!
Or you could just put all that aside and enjoy the dance, the song, and the joy of the performers. The song is not nearly as long as the video indicates, but then you get to see each dancer show off a little in the credits. -via Viral Viral Videos