The gem that is potter puppet pals

I am not ashamed to say that I sang that.

I loved my role in that

I sang it too don't worry

I was at the midnight screening of the 7th movie, and the entire theatre started singing this while waiting for it to start.. Whole bunch of nerds. All of us. I loved every minute.

I sang it in my head. Best thing ever

What is this from?

By Neil Sigserjiersigagaga...

I genuinely cannot thank you enough for spelling 'Hermione' correctly. I have told every one of my teachers repeatedly that 'no, madam. That's not how you spell my name. It's not 'HermOIne' it's 'HermIOne'!!

Stuck in my head for a half year