I need a poem on If I were in charge of the world.
If you need to find one, go to http://www.google.com/advanced_search?hl=en and enter those words in the second search box.
If you need to write one, you should get some ideas here about writing poetry:
http://www.google.com/search?rlz=1C1GGGE_enUS379US379&sourceid=chrome&ie=UTF-8&q=how+to+write+a+poem
The content will be up to you, though.