Easy but brilliant!
Watch Cosmic Jam for the timing but its simple if you've heard it
Ef/EEf/ED-E-f
hu-man-slaves
Bflat EE
in an insect na-tion (ah - aa aa aa aa!)
repeat 4 times then verse
AmfGE
(the locust sits upon a leaf, just biding his time
etc etc
then back to beginning.
enjoy