If we went yesterday, we could have seen Herman's Hermits!
I heard they got captured, and were put on exhibit.
They were singing their number one hits, like:
"Mrs Brown you've got a lovely Orangutan"
"Something tells me I FELL into something good"
"Silhouettes on the Cage"
"There's a kind of a hush, all over the Zoo"
And last but not least: "I'm Henry the Ape, I am"
To those of you who didn't blow out a candle when the light bulb was invented,
Those were English/American hits sung by the Herman's Hermits in the 60's.
Life back then was all about Peace, Love, Go Go Boots and Mini Skirts!
(I just loved the boots and skirts, cause I was a pubescent kid and we didn't have the XBox)
Can ya dig it?
They Were Really Groovy Man!
That band was Really Far Out! 
They were a Trip, cause those Cats were Swinging, dude!