Play it for your granddaughter, and see if you learn something.
It's too late now to learn, might as well just dive in and have fun. 
Maybe this is a better version.
https://www.youtube.com/watch?v=J19z4VTCR9M
Lots of knock off songs from it. Shows just how popular and catchy it is. That is the thing with that song, is just how catchy it is. The Rick Rolled song.....yeah, not so much.




