Two months ago my friend told me about A Very Potter Musical. It's a play that was done by a college a few years ago. It stars Darren Criss (yup, the hottie from Glee) as Harry Potter. It is by far the funniest thing I've almost ever seen. It'll take about two hours to watch it on youtube. Way worth watching it.
Here is the first video for it. I think every potter fan (or Darren Criss fan. Swoon) should watch it.