My head t asked me to teach the students dance moves to a pop song, so I found tutorial videos to Beyonce's Move Your Body, which forms part of the Let's Move campaign against childhood obesity in the States. It was loads of fun as part of my summer camp. If you have more time you could really let them learn the dance properly and perhaps consider performing it for the school at some point.
My PPT has only two pages as it is just the opening slide and then three video clips - two comprise the tutorial bit and the third is the whole song for them to perform to at the end.
Hope somebody can use this!