Give out an oral report assignment on how the body works or have students write a paper on anatomy and you may hear some groans...even from teachers and grading them. But allow students to write lyrics to a song incorporating the content learned and you may have an interesting assignment with students putting more effort into it. Even if they don't use GarageBand to create their own melody, this video shows that a couple of my former students singing accapella can produce an entertaining and catchy video, which was recorded in the wee hours of the night.