When world's collided.

Some of the video still available from that era is nearly surreal in the juxtaposition of the old vaudeville schtick overlapping with the music and performers of a completely seperate new era. There is a youtube video of John Lennon and Yoko Ono on the Merv Griffin Show with Henny Youngman that is striking in the same way.
In the Hullabaloo clip, the costumes, set, and performers are completely out of place with the song, and then in walk McGuinn and the Byrds, like acid freaks stumbling into a Manhattan cocktail party, to top it all off.