The Loser's latest obsession

The Complete and Total Loser has watched this clip more times than he wants to admit.

There's a longer version of it showing what happened before, which is that Martha Raye, Peter Lawford and Judy Garland are making fun of the then current teen culture of 1964. This comes at the end of it. The male dancer who will catch and keep your eye is Bobby Banas, who everyone's seen before in numerous movies, like West Side Story. He choreographed this to the Shirley Ellis song, The Nitty Gritty, but one of the male dancers didn't show up so

Banas had to dance it too. As you can see, he goes all out. The other dancers are fine, especially his female partner, who is great, but Banas steals it all nonetheless. 
You could write a thesis about this clip—an essay, anyway. A mild technical foul up after the intro, when the podium moves faster than anticipated makes Garland and the others stumble a little when getting off camera.

Martha Raye, Peter Lawford, Judy Garland get swept aside.

It's like you're watching the older generation literally get swept aside in favor of the new.