Any good 3-5 minute long poems? School Appropriate?

I have to give a speech to my class tomorrow. It has to be someone elses piece of writing. It could be a song lyrics, a excerpt from a book, a poem, etc... I chose to do a poem but I'm not having any luck finding a long enough one which is 3-5 minutes long. If I'm a couple seconds below or over I lose 10 pts. PLEASE HELP!
This is NOT playgerism. My teacher said we were to announce the author and such. I am not calling it my own work.