Easy but brilliant!

Watch Cosmic Jam for the timing but its simple if you've heard it

E F/E E F/E

D-E-F
hu-man-slaves

Bflat             E  E
     in an insect na-tion (ah - aa aa aa aa!)

repeat 4 times then verse
Am                F          G                E
(the locust sits upon a leaf, just biding his time
etc etc

then back to beginning.

enjoy